My Little MF - Pirate4x4.Com : 4x4 and Off-Road Forum

b4wscrambler · 09-07-2011, 05:42 PM

My little Mythical Flatty that is...

I had a flatty on 35's and used it for trail rides and competing in NeuRoc at Paragon years ago. The last few years I have built two different YJ's for Class 1 at RCROC's at Rausch Creek. Class 1 is one locker and 33's.

I am putting this one together to drive around town and to do well in the competitions.

1974 CJ 5 frame, Flatty body.
4.3
T350
twin sticked D300, flipped.
XJ hp front, YJ 4.10's, Detroit, RCV shafts
V6 2wd Toy rear, 4.10's
Durango PS box
33's BFG Muds and Outlaw 11's
8274
2" lift YJ springs and mounts
Simple cage tied in everywhere
Low back seats

Front and Rear Crossmember's

I did a little work to the bottom of the HP30.

b4wscrambler · 09-07-2011, 05:44 PM

Most of the fab work is done on the rear diff.

This is just a mockup body I borrowed from a friend. I could not really go any further without it.

euroford · 09-08-2011, 07:39 AM

i'm liking this a lot!

b4wscrambler · 09-09-2011, 04:27 AM

Thank you euroford. I have been collecting parts here and there as deals pop up. I figured I had enough parts to start putting something together.

I plan to get the rear shackle mounts, front axle truss and get a good start on the motor mounts this weekend.

b4wscrambler · 09-09-2011, 04:58 AM

A little past Jeep history for you just to give you a idea of where my head is at.

My original Flatty. 4.3, t18, M18 with Warn OD...

Current trail rig and lifer. Built SBC, auto, doubler, HP60, 9"....

Daily Driver XJ, 33's and lockers

O9 Comp YJ, worked awesome but no power. 4 cylinder with a automatic.

O10, O11 Comp YJ. 4.3, T350, flipped 300. I built it and drove. Not mine.

Sundowners · 09-09-2011, 05:01 AM

very sweet! I love the little flatties. I've looked at several to buy but all the ones that I found up here in PA are rusted shells.

b4wscrambler · 09-11-2011, 06:18 PM

Rear spring plates weld up.

Front axle truss is done.

Rear shackle and D ring mounts done.

Another picture of the Toyota rear housing.

slo02dodge · 09-11-2011, 07:45 PM

Looking good, I hope that you are planning on stretching the wheelbase because thats a long drivetrain for a short wheelbase. Also be carefull with that front axle truss because it is probably going to hit your motor. My dana 30 barely touched with no truss before i moved the axle ahead but that truss would still hit in my jeep. Im not saying that it wount work you just might want to set the motor before you get too far ahead of yourself.

b4wscrambler · 09-12-2011, 04:54 AM

Thank you for the heads up on the motor fitment issues. I have moved the axles and have the WB set at 86 3/8. I can not go more than 3" over stock for the class I will be using the Jeep in, stock is 83.5 for the 74 frame I am using.

I don't want to set the drive line until my shifters come in from D&D Machine that I ordered on August 1st...

fcfred · 09-12-2011, 09:49 AM

cool! looking good.

Mieser · 09-12-2011, 09:49 AM

Very cool! I'll be watching this one. It looks like it is going to be a lot like my '42 is suppose to end up.

2a_toys · 09-12-2011, 03:08 PM

Quote:

Originally Posted by b4wscrambler

Thank you for the heads up on the motor fitment issues. I have moved the axles and have the WB set at 86 3/8. I can not go more than 3" over stock for the class I will be using the Jeep in, stock is 83.5 for the 74 frame I am using.

I don't want to set the drive line until my shifters come in from D&D Machine that I ordered on August 1st...

It'll fit, very tight but it should. I'm at 89 inches and have an M38a1 frame, which is the same as an early CJ5 frame. I stretched the hood 3.5 inches to move the engine even further forward. I have a V8 Chevy motor, TH350 and D300 in mine. My d300 is the 1980 version with the short tail shaft. I would suggest putting your motor as far forward as you can. With the V6 you can put it further forward than I could with a V8. My rear shaft is REALLY short, 16.5 inches at ride height and the jeep is lifted 4.5 inches from stock. Ended up going with a CV style rear shaft and clocked the pinion up quite a bit. Works great with zero issues...sweet build by the way! I'll be watching...here's mine.

/forum/jeep-willys/868450-flatty-build.html

b4wscrambler · 09-12-2011, 06:48 PM

Thanks Fred.

Mieser I really like the vision for your build. I do hope mine turns out close to your Photoshopped picture.

2a_toys I dig your build.

b4wscrambler · 09-12-2011, 06:49 PM

I had a chance today to stop by my local 4wd shop Appalachian Off Road and got some of the little parts I need for the build. Some steering odds and ends and some bushing to finish getting the suspension together.

I took a quick measurement of the 4.3, at the most 25" long from the plug on the back of the distributor to the end of the studs in the water pump. The trans, adapter and short style D300 measure 36".

I do plan to mount the driveline offset to the passenger side at least 1" maybe 2" if I can swing it.

2a_toys · 09-12-2011, 07:10 PM

[QUOTE=I do plan to mount the driveline offset to the passenger side at least 1" maybe 2" if I can swing it.[/QUOTE]

I offset mine 2 inches...helped with driveshaft clearance at the tranny pan. Being driver side drop on your front, you won't have the clearance issues around the TH350 like you would if you had a passenger side drop front axle. The TH350 pan sticks out further on the passenger side. Exhaust clearance will be an issue to watch for offsetting it.

CronusTRD · 09-13-2011, 07:38 AM

I can't wait to spot this rig into a flop

jalbrecht42 · 09-13-2011, 09:18 AM

Quote:

Originally Posted by b4wscrambler

Rear spring plates weld up.

I've been meaning to build some of these . What thickness material did you go with? 3/16"

Build looks good, keep it up!

TheHNIC · 09-13-2011, 10:25 AM

Just outta curiosity, why'd you use a durango box over a tj/yj/xj box for steering?

b4wscrambler · 09-13-2011, 12:02 PM

Quote:

Originally Posted by CronusTRD

I can't wait to spot this rig into a flop

Thanks buddy.

Mike is my spotter for RCrocs and the owner of the White YJ.

b4wscrambler · 09-13-2011, 12:07 PM

jalbrecht42 I use 1/4" for the base and what ever the thicker angle is from Home Depot.

TheHNIC the Durango box uses a bigger bore and piston= more power.

b4wscrambler · 09-21-2011, 11:08 AM

Started mocking up the motor and trans in the frame. I was going to try and use some parts I already had, big aluminum radiator and electric fan that where in my Scrambler at one time and it is going to put the motor to far back to have a decent length rear driveshaft. I may be able to use the radiator but the fan is just way to thick.

Still no reply from D.D. Machine on my shifter order...

kmj153 · 09-21-2011, 01:41 PM

It looks like the rear axle is narrower than the front, just an optical illusion?

b4wscrambler · 09-21-2011, 05:17 PM

Front axle should be 60.5" and the rear should be 56". I have not verified these numbers, but they where on the internet so must be accurate.

craigellis77 · 09-21-2011, 08:58 PM

Looks great so far, and I'm looking forward to following your progress.

TheHNIC · 09-23-2011, 04:20 AM

Im really digging that uber simple D30 truss, but have u thought of poss. reinforcing the top side of the C's any? Kinda like these -> http://www.bluetorchfab.com/Product/...-C-Gusset.aspx

09-07-2011, 05:42 PM	#1 (permalink)
b4wscrambler Registered User Join Date: Oct 2006 Member # 80328 Location: Sykesville MD Posts: 497	My Little MF My little Mythical Flatty that is... I had a flatty on 35's and used it for trail rides and competing in NeuRoc at Paragon years ago. The last few years I have built two different YJ's for Class 1 at RCROC's at Rausch Creek. Class 1 is one locker and 33's. I am putting this one together to drive around town and to do well in the competitions. 1974 CJ 5 frame, Flatty body. 4.3 T350 twin sticked D300, flipped. XJ hp front, YJ 4.10's, Detroit, RCV shafts V6 2wd Toy rear, 4.10's Durango PS box 33's BFG Muds and Outlaw 11's 8274 2" lift YJ springs and mounts Simple cage tied in everywhere Low back seats Front and Rear Crossmember's I did a little work to the bottom of the HP30. __________________ Script GPW project in progress.

09-07-2011, 05:44 PM	#2 (permalink)
b4wscrambler Registered User Join Date: Oct 2006 Member # 80328 Location: Sykesville MD Posts: 497	Most of the fab work is done on the rear diff. This is just a mockup body I borrowed from a friend. I could not really go any further without it. __________________ Script GPW project in progress.

09-08-2011, 07:39 AM	#3 (permalink)
euroford Registered User Join Date: Oct 2010 Member # 171057 Location: Louisville, CO Posts: 567	i'm liking this a lot! __________________ 1950 CJ3A Wilma FJ60 axle build in progress 1999 Ford F350 PSD Betty tow pig/adventurmobile

09-09-2011, 04:27 AM	#4 (permalink)
b4wscrambler Registered User Join Date: Oct 2006 Member # 80328 Location: Sykesville MD Posts: 497	Thank you euroford. I have been collecting parts here and there as deals pop up. I figured I had enough parts to start putting something together. I plan to get the rear shackle mounts, front axle truss and get a good start on the motor mounts this weekend. __________________ Script GPW project in progress.

09-09-2011, 04:58 AM	#5 (permalink)
b4wscrambler Registered User Join Date: Oct 2006 Member # 80328 Location: Sykesville MD Posts: 497	A little past Jeep history for you just to give you a idea of where my head is at. My original Flatty. 4.3, t18, M18 with Warn OD... Current trail rig and lifer. Built SBC, auto, doubler, HP60, 9".... Daily Driver XJ, 33's and lockers O9 Comp YJ, worked awesome but no power. 4 cylinder with a automatic. O10, O11 Comp YJ. 4.3, T350, flipped 300. I built it and drove. Not mine. __________________ Script GPW project in progress.

09-09-2011, 05:01 AM	#6 (permalink)
Sundowners Registered User Join Date: Sep 2009 Member # 142521 Location: Pittsburgh PA Posts: 350	very sweet! I love the little flatties. I've looked at several to buy but all the ones that I found up here in PA are rusted shells.

09-11-2011, 06:18 PM	#7 (permalink)
b4wscrambler Registered User Join Date: Oct 2006 Member # 80328 Location: Sykesville MD Posts: 497	Rear spring plates weld up. Front axle truss is done. Rear shackle and D ring mounts done. Another picture of the Toyota rear housing. __________________ Script GPW project in progress.

09-11-2011, 07:45 PM	#8 (permalink)
slo02dodge Registered User Join Date: Sep 2010 Member # 169497 Location: Cayucos, CA Posts: 14	Looking good, I hope that you are planning on stretching the wheelbase because thats a long drivetrain for a short wheelbase. Also be carefull with that front axle truss because it is probably going to hit your motor. My dana 30 barely touched with no truss before i moved the axle ahead but that truss would still hit in my jeep. Im not saying that it wount work you just might want to set the motor before you get too far ahead of yourself.

09-12-2011, 04:54 AM	#9 (permalink)
b4wscrambler Registered User Join Date: Oct 2006 Member # 80328 Location: Sykesville MD Posts: 497	Thank you for the heads up on the motor fitment issues. I have moved the axles and have the WB set at 86 3/8. I can not go more than 3" over stock for the class I will be using the Jeep in, stock is 83.5 for the 74 frame I am using. I don't want to set the drive line until my shifters come in from D&D Machine that I ordered on August 1st... __________________ Script GPW project in progress.

09-12-2011, 09:49 AM	#10 (permalink)
fcfred 4xdork Join Date: Feb 2001 Member # 3263 Location: not portland Posts: 3,168	cool! looking good. __________________ Team Tank old junk, new junk, unfinished junk Live Large-RIP Jason Payne ARMY TRUCK STOLEN!

09-12-2011, 09:49 AM	#11 (permalink)
Mieser Registered User Join Date: Jun 2001 Member # 5326 Location: Southwest Colorado Posts: 3,976	Very cool! I'll be watching this one. It looks like it is going to be a lot like my '42 is suppose to end up. __________________ 42 MB, 225, T18, big kid go cart with clown tires 92 Dodge W250 daily driver on 39s

09-12-2011, 06:48 PM	#13 (permalink)
b4wscrambler Registered User Join Date: Oct 2006 Member # 80328 Location: Sykesville MD Posts: 497	Thanks Fred. Mieser I really like the vision for your build. I do hope mine turns out close to your Photoshopped picture. 2a_toys I dig your build. __________________ Script GPW project in progress.

09-12-2011, 06:49 PM	#14 (permalink)
b4wscrambler Registered User Join Date: Oct 2006 Member # 80328 Location: Sykesville MD Posts: 497	I had a chance today to stop by my local 4wd shop Appalachian Off Road and got some of the little parts I need for the build. Some steering odds and ends and some bushing to finish getting the suspension together. I took a quick measurement of the 4.3, at the most 25" long from the plug on the back of the distributor to the end of the studs in the water pump. The trans, adapter and short style D300 measure 36". I do plan to mount the driveline offset to the passenger side at least 1" maybe 2" if I can swing it. __________________ Script GPW project in progress.

09-12-2011, 07:10 PM	#15 (permalink)
2a_toys Wheeler Join Date: Sep 2009 Member # 141743 Location: Kansas Posts: 140	[QUOTE=I do plan to mount the driveline offset to the passenger side at least 1" maybe 2" if I can swing it.[/QUOTE] I offset mine 2 inches...helped with driveshaft clearance at the tranny pan. Being driver side drop on your front, you won't have the clearance issues around the TH350 like you would if you had a passenger side drop front axle. The TH350 pan sticks out further on the passenger side. Exhaust clearance will be an issue to watch for offsetting it. __________________ Orange 1948 Willys CJ2a Flatty Build http://www.pirate4x4.com/forum/showthread.php?t=868450

09-13-2011, 07:38 AM	#16 (permalink)
CronusTRD Rock God Join Date: Apr 2002 Member # 11141 Location: MD Posts: 1,692 Blog Entries: 1	I can't wait to spot this rig into a flop __________________ Mike RcRocs 4.3 Toyota Jeep www.marylandcreepers.com www.rightcoast4x4.com

09-13-2011, 10:25 AM	#18 (permalink)
TheHNIC Registered User Join Date: Mar 2010 Member # 155912 Location: MD Posts: 145	Steering box Just outta curiosity, why'd you use a durango box over a tj/yj/xj box for steering?

09-13-2011, 12:07 PM	#20 (permalink)
b4wscrambler Registered User Join Date: Oct 2006 Member # 80328 Location: Sykesville MD Posts: 497	jalbrecht42 I use 1/4" for the base and what ever the thicker angle is from Home Depot. TheHNIC the Durango box uses a bigger bore and piston= more power. __________________ Script GPW project in progress.

09-21-2011, 11:08 AM	#21 (permalink)
b4wscrambler Registered User Join Date: Oct 2006 Member # 80328 Location: Sykesville MD Posts: 497	Started mocking up the motor and trans in the frame. I was going to try and use some parts I already had, big aluminum radiator and electric fan that where in my Scrambler at one time and it is going to put the motor to far back to have a decent length rear driveshaft. I may be able to use the radiator but the fan is just way to thick. Still no reply from D.D. Machine on my shifter order... __________________ Script GPW project in progress.

09-21-2011, 01:41 PM	#22 (permalink)
kmj153 Registered User Join Date: Apr 2006 Member # 71376 Location: Bel Air MD Posts: 119	It looks like the rear axle is narrower than the front, just an optical illusion? __________________ 1990 YJ, 4.2, AX-15, Stak Dana 300 R-A-C w/ Low max 4:1, F&R D44's with 4.56's and ARB's

09-21-2011, 05:17 PM	#23 (permalink)
b4wscrambler Registered User Join Date: Oct 2006 Member # 80328 Location: Sykesville MD Posts: 497	Front axle should be 60.5" and the rear should be 56". I have not verified these numbers, but they where on the internet so must be accurate. __________________ Script GPW project in progress.

09-21-2011, 08:58 PM	#24 (permalink)
craigellis77 Granite Guru Join Date: Jun 2004 Member # 31763 Location: Tupelo, MS Posts: 792	Looks great so far, and I'm looking forward to following your progress. __________________ My M38A1 build thread

09-23-2011, 04:20 AM	#25 (permalink)
TheHNIC Registered User Join Date: Mar 2010 Member # 155912 Location: MD Posts: 145	D30 C's Im really digging that uber simple D30 truss, but have u thought of poss. reinforcing the top side of the C's any? Kinda like these -> http://www.bluetorchfab.com/Product/...-C-Gusset.aspx

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