2.5l tranny options - Pirate4x4.Com : 4x4 and Off-Road Forum

ogreshooter · 09-18-2007, 09:29 PM

I am looking to possibly swap my ax-5 out in favor of a different and stronger 5-speed, but want something different, but stay 5-speed.

What options are available. I know the ax-15 is an option, but what others are available?

Toyota? Ford? Chevy? I do not need an NV-4500 as it is just a 4-banger, but am curious what I can do.

Thanks.

OK, background since I know someone is grumbling. I do not wheel hard, but enjoy some rocks, snow, mud, scenic mountain passes. I want the availability to have lower low range.

Hackfabricaton · 09-19-2007, 03:43 AM

Nv3550.

KVOM · 09-20-2007, 06:49 AM

If you want lower range why not a different TC (or doubler)? Or else regear?

crusty1007 · 09-20-2007, 08:39 AM

because the Ax-5 suks. wether you just want lower gearing or not.
Edit: If you plan on running larger than a 35" tire the 4 cylinder wont need a 5 speed. even if you go to 5.38s it will have a very hard time pulling the tires above 50 MPH.

wranglerwilson · 09-20-2007, 09:31 AM

Quote:

Originally Posted by crusty1007

because the Ax-5 suks. wether you just want lower gearing or not.
Edit: If you plan on running larger than a 35" tire the 4 cylinder wont need a 5 speed. even if you go to 5.38s it will have a very hard time pulling the tires above 50 MPH.

He is right, you may as well go to a 4speed. A SM420 or SM465 Will give you the low gearing you want. While you are at it a 9lb inerta ring on the flywheel will do wonders. I have the parts to conect a SM465 to a 4.2 and 231 TC. Contact me if intersted.

Appalachian Offroad · 09-20-2007, 11:28 AM

I agree with nv3550. I like the Toy 5spd swap but it gets involved with the Tcases. You will need to swap inputs on the 231 with the 3550.

currupt4130 · 09-20-2007, 02:41 PM

NP435! Probably wouldn't go well with your gearing though.

ogreshooter · 09-20-2007, 08:05 PM

currupt4230, why not? Too low on the first, too wide a spread on the rest?? I have that transmission and t-case.

Appilachian offroad, what needs to be done to swap to the toyota tranny and t-cases? Do they offer a drivers drop? Or is it another kit to swap to drivers drop? or can they be flipped????

Ryalt · 09-20-2007, 08:52 PM

I'm preping for a stronger engine swap in the future, and planning out what to do with my tranny as well. The Jeep is currently my DD, and I drive 30 miles on the highway to and from work, but I don't go all that fast and don't mind taking a little bit more time not having overdrive if I do have granny low.

I'm taking a strong look at the SM420. It seems like a solid transfer, and it has the excellent granny low which is what draws me to it. I'm currently running the stock gear ratio (4.10) on a front 30, rear 35 at the moment.

I figure at some point I want a D44 front, and a 8.8 rear, and when I do that and re-gear, then I'm going to look for a tranny that will be able to handle a stronger engine as well.

Trying to go one step at a time isn't easy though, when all you want to do is dump it all in asap.

Here's a good write-up on the SM420 swap:
http://www.jeeptech.com/convtrans/sm420yj/

I was thinking about staying 5 speed as well, and currently I use my Jeep for basic offroading, but that's because I can't handle the bigger stuff yet. I really suggest thinking about how you want to use it, because if you don't do much fancy, I really suggest grabbing an ax-15 and being done with it. It's stronger, and can handle the 2.5L fine for what it sounds like where you are going with the rig.

just my 2 cents.

currupt4130 · 09-20-2007, 09:44 PM

Quote:

Originally Posted by ogreshooter

currupt4230, why not? Too low on the first, too wide a spread on the rest?? I have that transmission and t-case.

Appilachian offroad, what needs to be done to swap to the toyota tranny and t-cases? Do they offer a drivers drop? Or is it another kit to swap to drivers drop? or can they be flipped????

The reason I said it wouldn't be a good choice is because it's a 4 speed, and 4th gear is 1:1. It worked great with me when I ran 35's on the highway with 4.10's, but I see you have 4.88's. Just thought the RPM's might be a touch high. I think it's a great tranny, albeit a little heavy, you won't ever break it (conceivably you could, but it'd be hard).

Read this: http://www.pirate4x4.com/forum/showt...ighlight=NP435

crwlinyj · 09-20-2007, 10:30 PM

I had a 90 yj 2.5l it pushed my 36's up to 65mph until I hit a hill droped down a bit but would get back up there so if u can't get over 50mph maybe u should look at ur motor maybe getting to weak to push anything so just my 2 cents maybe try and get more power from ur motor like intake exhaust or electric fan less $ but can improve a lot

KVOM · 09-21-2007, 07:47 PM

Quote:

Originally Posted by crusty1007

If you plan on running larger than a 35" tire the 4 cylinder wont need a 5 speed. even if you go to 5.38s it will have a very hard time pulling the tires above 50 MPH.

I have a 4-banger and run 37s with 5.13 gears, and I run 55 in 4th.

09-18-2007, 09:29 PM	#1 (permalink)
ogreshooter Registered User Join Date: Nov 2004 Member # 37931 Location: Shuck me, suck me, eat me raw! Posts: 495	2.5l tranny options I am looking to possibly swap my ax-5 out in favor of a different and stronger 5-speed, but want something different, but stay 5-speed. What options are available. I know the ax-15 is an option, but what others are available? Toyota? Ford? Chevy? I do not need an NV-4500 as it is just a 4-banger, but am curious what I can do. Thanks. OK, background since I know someone is grumbling. I do not wheel hard, but enjoy some rocks, snow, mud, scenic mountain passes. I want the availability to have lower low range. __________________ 90 YJ, 2.5, AX-5, D44-D30-4.88-7" SOA-35" Baja Claw Radials-T-Max 10,000 EWI

09-19-2007, 03:43 AM	#2 (permalink)
Hackfabricaton Registered User Join Date: Apr 2006 Member # 70509 Location: Canton, Michigan Posts: 1,198	Nv3550. __________________ "In the end...It's all Hack." Last edited by Hackfabricaton; 09-19-2007 at 03:49 AM.

09-20-2007, 06:49 AM	#3 (permalink)
KVOM Wheeler Join Date: Oct 2004 Member # 36715 Location: Cumming, GA Posts: 258	If you want lower range why not a different TC (or doubler)? Or else regear? __________________ 97 TJ Buggy 2002 Ford F350 7.3PSD CC LB

09-20-2007, 08:39 AM	#4 (permalink)
crusty1007 Registered User Join Date: May 2005 Member # 47826 Location: PISMO BEACH Posts: 1,052	because the Ax-5 suks. wether you just want lower gearing or not. Edit: If you plan on running larger than a 35" tire the 4 cylinder wont need a 5 speed. even if you go to 5.38s it will have a very hard time pulling the tires above 50 MPH. __________________ Thean Bellocchi [URL="www.polyperformance.com"]www.[COLOR="Red"][B]P[/B][/COLOR]oly[COLOR="Red"][B]P[/B][/COLOR]erformance.com[/URL] [email]Thean@PolyPerformance.com[/email] Last edited by crusty1007; 09-20-2007 at 08:41 AM.

09-20-2007, 11:28 AM	#6 (permalink)
Appalachian Offroad Wheeler Join Date: Sep 2007 Member # 99787 Location: Maryland Posts: 190	I agree with nv3550. I like the Toy 5spd swap but it gets involved with the Tcases. You will need to swap inputs on the 231 with the 3550. __________________ Appalachian Offroad Inc 410-848-2942 Westminster, Maryland Tube bending/notching, Rollcages, Differential Repair and Modification, Suspension, Chassis--> Turnkey, Custom Axles, Alignments Need pricing on any of the following product lines? Yukon, Rubicon Express, PRP Suspension Seats, Dana Spicer, Eaton, or Advanced Adapters..... Give us a call, pm us or stop by the shop for pricing or estimates.

09-20-2007, 02:41 PM	#7 (permalink)
currupt4130 Registered User Join Date: Nov 2004 Member # 39371 Location: Rock Hill, SC Posts: 1,924	NP435! Probably wouldn't go well with your gearing though. __________________ The mountains are calling and I must go. -John Muir Last edited by currupt4130; 09-20-2007 at 02:41 PM.

09-20-2007, 08:05 PM	#8 (permalink)
ogreshooter Registered User Join Date: Nov 2004 Member # 37931 Location: Shuck me, suck me, eat me raw! Posts: 495	currupt4230, why not? Too low on the first, too wide a spread on the rest?? I have that transmission and t-case. Appilachian offroad, what needs to be done to swap to the toyota tranny and t-cases? Do they offer a drivers drop? Or is it another kit to swap to drivers drop? or can they be flipped???? __________________ 90 YJ, 2.5, AX-5, D44-D30-4.88-7" SOA-35" Baja Claw Radials-T-Max 10,000 EWI

09-20-2007, 08:52 PM	#9 (permalink)
Ryalt Registered User Join Date: Jul 2007 Member # 95348 Location: Worcester, MA Posts: 65	I'm preping for a stronger engine swap in the future, and planning out what to do with my tranny as well. The Jeep is currently my DD, and I drive 30 miles on the highway to and from work, but I don't go all that fast and don't mind taking a little bit more time not having overdrive if I do have granny low. I'm taking a strong look at the SM420. It seems like a solid transfer, and it has the excellent granny low which is what draws me to it. I'm currently running the stock gear ratio (4.10) on a front 30, rear 35 at the moment. I figure at some point I want a D44 front, and a 8.8 rear, and when I do that and re-gear, then I'm going to look for a tranny that will be able to handle a stronger engine as well. Trying to go one step at a time isn't easy though, when all you want to do is dump it all in asap. Here's a good write-up on the SM420 swap: http://www.jeeptech.com/convtrans/sm420yj/ I was thinking about staying 5 speed as well, and currently I use my Jeep for basic offroading, but that's because I can't handle the bigger stuff yet. I really suggest thinking about how you want to use it, because if you don't do much fancy, I really suggest grabbing an ax-15 and being done with it. It's stronger, and can handle the 2.5L fine for what it sounds like where you are going with the rig. just my 2 cents.

09-20-2007, 10:30 PM	#11 (permalink)
crwlinyj Registered User Join Date: Jul 2006 Member # 76531 Location: redding, CA Posts: 81	I had a 90 yj 2.5l it pushed my 36's up to 65mph until I hit a hill droped down a bit but would get back up there so if u can't get over 50mph maybe u should look at ur motor maybe getting to weak to push anything so just my 2 cents maybe try and get more power from ur motor like intake exhaust or electric fan less $ but can improve a lot __________________ 90 yj 36' iroks 4-1 tcase 2low shift fork detroits front and rear lots of body mods thanks to rocks

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