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1994 GMC Safari Repair Question


Topics covered: Axle, Wheel, Cv joint.
Mileage: 213,000 miles.

Asked on August 30, 2011

Can the front wheel drive be disconneted safely

I have a 94 Safari with 213k miles, on its last leg. Need it to last a while longer. The cv joints are shot, wondering if both front axles and front drive line can be removed, and just run it as a rear wheel drive van?
Avatar Asked by HEpperson

Answer

Replied on August 31, 2011

We only recommend the manufacturer's recommendations. Removing said parts could lead to serious problems.

Tiny Answered by Jacobandnickolas (expert)
57,318 answers provided
Replied on August 31, 2011

You need the cv joints to hold the front wheel bearings together. If you remove the front drive shaft, you can run it that way as a rear-whee-drive because unlike Chrysler and Ford systems, yours uses a transfer case, not a viscous coupling to one axle. That means both drive shafts are locked together and will always turn at the exact same speed, and if one is disconnected, the other one will still turn. That system is very hard on tire wear and it is critically important that all four tires have exactly the same circumference to prevent damage to the transfer case.

There should be no need to pull the half shafts apart since they'll just be going along for the ride, so to speak. It's the outer housings that have to be bolted solidly in place to prevent the wheel bearings from coming apart or becoming noisy.

Tiny Answered by caradiodoc (expert)
17,296 answers provided
Replied on August 31, 2011

Thank you for the information. I did read else where, that if disconnected in this fashion, that there was a potential problem with the van rolling away while in park? Any truth to this?

Tiny Response from HEpperson
1 question asked

Replied on August 31, 2011

Nope. The rear axle is still linked mechanically to the transmission with its parking lock.

Tiny Answered by caradiodoc (expert)
17,296 answers provided