Hello all

Just got done with the preliminary measurements on a my gm axles.
d60F
14BR
. Everything looks good (spring pin width in front is the same! , Avalanche arms… new perches in rear,….. etc)
The one thing I haven’t worked out yet is pinion & x-fer yolks. Anybody already gone through this??? TIA.
:question:

welcome Newbie :flipoff2: :flipoff2:

Yeah what Chief said:flipoff2: :flipoff2:

Front yoke should be a 1310..rear could be a 1350. Call a drive line place.

What kind of T-case are you running? I think it have a 1310 on the rear of my Dana 20.

[WELCOME!!!!!!!!!! :flipoff2: :flipoff2: :flipoff2:

x-fer is scout D300

I was running a Dana 300 in my setup before I started building my motor, using that with my 60 front and my 14 bolt rear. For the 14 bolt you'll hafta get a conversion u-joint to fit the smaller yoke ends on the driveshaft end, and a wider u-joint for the 14 bolt. I'll check my numbers on the box when I get to the shop... the NAPA number is 538 I think... but I'll double check to make sure. The front went in with standard 1310s on each end.

Matt "Taz" Green
Xtreme Engineering

BTW: Just out of curiosity.... what size tires are you planning on running with that axle setup? With my 44" Boggers, I've got 13.75" of ground clearance under each pod... I'm planning on shaving both of them though... might be something else you might wanna give some thoughts.... that 14 bolt is a rock dragger man.

Originally posted by ScoutsHonor
For the 14 bolt you'll hafta get a conversion u-joint to fit the smaller yoke ends on the driveshaft end, and a wider u-joint for the 14 bolt. I'll check my numbers on the box when I get to the shop... the NAPA number is 538 I think...

spicer 5-460x ??

I haven’t bought tires yet but 38.5 at a minimum. I know the 14B is a giant pig but damn they are tough and parts are dirt cheap $$$ It took me over year of local classified scanning to find a 1-ton Chevy and the wallet just cant do nothing else for now. Besides I’m east coast where rock dragger = mud dragger

;)
Or after a year when I wear the body off I can go to some massive AG tires
Massive

To anyone who replaced a 44 with a 14 bolt rear, I am interested in the same, is the pinion on the 14 bolt shorter than a 44?, by about how much? how about the pinion height? Did you need driveshaft mods? I am sitting on the fence on either a high pinion 60, a regular 60, or a 14 bolt in the rear. Problem will be a very short maybe 16 inch rear driveshaft

Originally posted by ChiScouter
To anyone who replaced a 44 with a 14 bolt rear, I am interested in the same, is the pinion on the 14 bolt shorter than a 44?, by about how much? how about the pinion height? Did you need driveshaft mods? I am sitting on the fence on either a high pinion 60, a regular 60, or a 14 bolt in the rear. Problem will be a very short maybe 16 inch rear driveshaft

Hey! Welcome newbie! :flipoff2: I get out to Lincolnshire about once a Month. I'll have to look you up to let you buy me a beer!.
What are your plans for the rig? I want a 14 bolt so I can drive up walls without breaking shit. Do you plan on driving up granite walls?

Linconshire is about a 45 minute cruise for me, I don't know about granite walls, but I'd like to surprise a few guys trying to pass me on the right. The Scout is a daily driver and weekend play toy that will have a bit of torque going to the rear wheels. In the shop now is a 72 500 Cadillac, mild build, with cam, intake, etc. In another very long pile is a built 4L80E, a Chevy 203/Dodge241 double transfer case. The 727/dana 20 was about 33 inches long, the new setup with the 2 custom adapters(1 between the 4L80E and the 203, and 1 between the 203 and 241) will be about 55 inches. I have a 2 1/2 Skyjacker springs, and a Fiberglass SSII body, 3 inch body lift. I would also like to move everything back a couple of inches for fan clearance. I won't know just how short the driveshaft will be, or how much downward tilt the drivetrain will have until I shoehorn the setup in. I plan on a CV driveshaft. I am uncomfortable with the hi pinion 60 running on the cost side with all that torque, but worried about driveshaft angle, and bad pinion oiling from too much upward pinion tilt with a standard 60. Thats why I am looking into the 14 bolt. I would hope to build the 14 bolt as a semi float 5x5.5

Originally posted by ChiScouter
Linconshire is about a 45 minute cruise for me, I don't know about granite walls, but I'd like to surprise a few guys trying to pass me on the right. The Scout is a daily driver and weekend play toy that will have a bit of torque going to the rear wheels. In the shop now is a 72 500 Cadillac, mild build, with cam, intake, etc. In another very long pile is a built 4L80E, a Chevy 203/Dodge241 double transfer case. The 727/dana 20 was about 33 inches long, the new setup with the 2 custom adapters(1 between the 4L80E and the 203, and 1 between the 203 and 241) will be about 55 inches. I have a 2 1/2 Skyjacker springs, and a Fiberglass SSII body, 3 inch body lift. I would also like to move everything back a couple of inches for fan clearance. I won't know just how short the driveshaft will be, or how much downward tilt the drivetrain will have until I shoehorn the setup in. I plan on a CV driveshaft. I am uncomfortable with the hi pinion 60 running on the cost side with all that torque, but worried about driveshaft angle, and bad pinion oiling from too much upward pinion tilt with a standard 60. Thats why I am looking into the 14 bolt. I would hope to build the 14 bolt as a semi float 5x5.5

Well...a couple of things here...1) You could probably have a 5 on 5.5 14 bolt made but I think that it would have to be FF. The axles are 30 or 31 spline (I don't remember and it's to cold in the garage to go and count) and 1.5" in diameter. When they make 60" SF, the axles are 35 spline 1.5" in diameter. Of course, Dutchman, Moser, or whoever else might be able to make you a set but I think that it would be more work. 35 spline SF 60 were a factory option...the 14 bolt 1.5" diameter axles were not. So, you may have to figure out which bearings and collars to use. I'm not saying that it can't be done...I just haven't hears or seen it done yet.
The other thing...I have a Scout 80 so I don't know how much this applies. But, My Chevy motor is moved back about 2.5" from the stock 4cyl location or about a foot from where they put the v-8's in these things. I have an SM465-->3.5" adaptor-->Atlas. I never thought that I would have drive line issues...until now. I'm trying to tuck the tranny/t-case up for nice clearance on the bottom and it has now forced me to go with a CV rear (Needed one anyway for the driveline e-brake) but I also have to turn the pinion up on the 14 bolt. It's set at about 20* although I have not welded the perches in yet. I plan on adding extra fluid to compensate for the extra angle. I ran my last 60 at about 17* and it ran fine. Also, my buddy ran is 9" at around 23-25* and never had an issue either.

HTH--SD