Can a 2wd tranny be made to fit a 4wd?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

BarryB · 10-17-2008, 02:54 PM

I heard this awhile back ago. and if it has been asked before apologize for not searching. I have a 84 Chevy 4wd, Th350. The trans is weak. I have good 350 2wd. I had heard you could remove the back piece off the tranny and cut the shaft down in order to fit the transfer case. Is that true?? Has anybody done it?

duallyjams · 10-17-2008, 06:40 PM

You would have ti disassemble the 4x4 trans to use the shaft so why not just rebuild it.

LONGHAIR · 10-17-2008, 07:47 PM

It is not as simple as "cutting off" the longer (2 wheel drive) output shaft. The splined section is only at the end, if you could cut it short enough, the splines would be gone. The output shaft is the last part to be taken out of the case....at total rebuild is in order.

*FormerMember* · 10-17-2008, 10:39 PM

Or you could build a spacer that goes between the transfer case adapter and the transmission housing, this would take up the extra spline on the output shaft.

I've seen that done, but you would need to shorten your rear drive-shaft and lengthen the front one.

BarryB · 10-18-2008, 11:05 AM

Thanks guys for the info. I will forget the first idea. I am not againist rebuilding a trans, just thought I'd ask.

10-17-2008, 02:54 PM	#1
BarryB Senior Member Join Date: Jul 2006 Location: Blountville, Tn. Posts: 3,904	Can a 2wd tranny be made to fit a 4wd?? I heard this awhile back ago. and if it has been asked before apologize for not searching. I have a 84 Chevy 4wd, Th350. The trans is weak. I have good 350 2wd. I had heard you could remove the back piece off the tranny and cut the shaft down in order to fit the transfer case. Is that true?? Has anybody done it? __________________ We could learn a lot from crayons... Some are sharp; some are pretty;and some are dull. Some have weird names; and all are different colours;but they all have to live in the same box. You may be only one person in the world, But you may also be the world to one person. * Some mistakes are too much fun to only make once. Two rules in life. 1. Never sweat the small stuff! 2. Everything is small stuff!

10-17-2008, 06:40 PM	#2
duallyjams Registered User Join Date: May 2007 Location: Deale Md Posts: 4,663	Re: Can a 2wd tranny be made to fit a 4wd?? You would have ti disassemble the 4x4 trans to use the shaft so why not just rebuild it. __________________ James 63 GMC V6 4speed carryall 65 chevy swb bbw V8 auto 68 K20 327/4 speed, buddy buckets 2002 GMC CC Dually Duramax 64 GMC lwb 3/4 V6 4speed SOLD 66 GMC swb bbw buddy buckets SOLD IG duallyjams The only thing that stays the same is constant change!

10-17-2008, 07:47 PM	#3
LONGHAIR just can't cover up my redneck Join Date: May 2004 Location: Columbus OH Posts: 11,414	Re: Can a 2wd tranny be made to fit a 4wd?? It is not as simple as "cutting off" the longer (2 wheel drive) output shaft. The splined section is only at the end, if you could cut it short enough, the splines would be gone. The output shaft is the last part to be taken out of the case....at total rebuild is in order.

10-17-2008, 10:39 PM	#4
FormerMember Account Suspended Join Date: Feb 2004 Posts: 3,051	Re: Can a 2wd tranny be made to fit a 4wd?? Or you could build a spacer that goes between the transfer case adapter and the transmission housing, this would take up the extra spline on the output shaft. I've seen that done, but you would need to shorten your rear drive-shaft and lengthen the front one. Last edited by FormerMember; 10-18-2008 at 11:42 AM.

10-18-2008, 11:05 AM	#5
BarryB Senior Member Join Date: Jul 2006 Location: Blountville, Tn. Posts: 3,904	Re: Can a 2wd tranny be made to fit a 4wd?? Thanks guys for the info. I will forget the first idea. I am not againist rebuilding a trans, just thought I'd ask. __________________ We could learn a lot from crayons... Some are sharp; some are pretty;and some are dull. Some have weird names; and all are different colours;but they all have to live in the same box. You may be only one person in the world, But you may also be the world to one person. * Some mistakes are too much fun to only make once. Two rules in life. 1. Never sweat the small stuff! 2. Everything is small stuff!



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