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2wd to 4wd conversion

conversion

2wd to 4wd conversion

Postby Tech4665 [OP] » Jul 17 2012, 10:08pm

okay so basically im stuck. i have a 2008 GMC sierra 2wd and i want to convert it to a 4wd. i found a 2003 Silverado 4wd i can get all the parts off of. I am pretty sure all the parts will fit and every thing but my main question is would i need a newer transfer case module or anything, or could i use the same old module out of the 2003 into my 2008. a technician at GMC said i would need a newer module but other people say it would work just fine with the same old module. i hear alot of problems with it going into 4wd low when the conversion happens.
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Re: 2wd to 4wd conversion

Postby ASTE25 » Jul 17 2012, 10:10pm

I'm not sure the parts off the 2003 will work on the 2008 because they are different generations vehicles.
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Re: 2wd to 4wd conversion

Postby Tech4665 [OP] » Jul 17 2012, 10:12pm

thats what i thought to but alot of forums are saying it should because they both have the 5.3L and 4L60 trans.
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Re: 2wd to 4wd conversion

Postby Bostonmaniac781 » Jul 17 2012, 10:21pm

The motor and tranny may be the same but the frame, body and everything else is completely different. Like ASTE25 said, they are different generations.
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Re: 2wd to 4wd conversion

Postby Tech4665 [OP] » Jul 17 2012, 10:22pm

so no go overall basicall?
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2wd to 4wd conversion

Postby Machster69 » Jul 17 2012, 10:27pm

Im betting my $20 on a definite no go...
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Re: 2wd to 4wd conversion

Postby raider27 » Jul 17 2012, 10:30pm

You should just look for a 4x4 truck to replace the 2wd. Even if you had a donor NNBS, it would be really expensive and a lot of work.
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2wd to 4wd conversion

Postby Machster69 » Jul 17 2012, 10:34pm

Youd receive none of that money/work in return when you sold it. Hell ide never actually buy the truck if you did that to it....
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Re: 2wd to 4wd conversion

Postby ASTE25 » Jul 17 2012, 10:34pm

The 2003 front suspension is a torsion bar and the 2008 is a coil spring suspension. I doubt they will interchange anyhow. Like stated above, it would be cost prohibitive.
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Re: 2wd to 4wd conversion

Postby Tech4665 [OP] » Jul 17 2012, 10:48pm

alright thanks everyone. least i didnt buy it yet.
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