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Old 04-05-2010, 08:25 AM
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Getrag Trans

i've been looking for a T5 trans to put in my 62, Chev, 3/4 pickup but haven't had any luck. i found a guy with a 1990 Chevy-truck, Getrag trans. i know nothing about them. does anyone know if this will bolt up to my 235 six like a T5? what are the pitfalls of this swap?

THANKS!
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Old 04-05-2010, 08:44 AM
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t 5

I think a T 5 would not be heavy enough for a 3/4 ton pickup unles you just ran empty on flat ground. I would look for the trans out of a similar sized pickup.
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Old 04-05-2010, 09:04 AM
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Hi,

http://www.jegs.com/i/Steeda/957/TCE...oductId=946657

The Gutrag, power wise it's good to about 275, I have one of these in my old tow truck, it's OK for what it is.
Rich
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Old 04-05-2010, 09:16 AM
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Quote:
Originally Posted by tab
i've been looking for a T5 trans to put in my 62, Chev, 3/4 pickup but haven't had any luck. i found a guy with a 1990 Chevy-truck, Getrag trans. i know nothing about them. does anyone know if this will bolt up to my 235 six like a T5? what are the pitfalls of this swap?

THANKS!
I've heard the '88-'90 are to be avoided, something about bearing failure. Definitely double check this- it's purely anecdotal.

In any event, there shouldn't be much problem snagging a T5, there not particularly scarce.
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Old 04-06-2010, 09:03 AM
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thanks for the replies. i got some Getrag info and it's not a pretty picture. seems -as posted above- early versions had bearing problems and because of their complexity and the high cost of parts, rebuilding is not a good option. here's the info from another 'hot rod' site :


Quote:
I would NEVER want the first design transmission, because of it bearings:
There are two designs for the input shaft, input shaft bearings and main shaft bearings. The first design, which documentation will show as 1988-1990, had a ball bearing and a roller bearing behind it. The second design only has a ball bearing but it was a much larger bearing. The first design bearings were more prone to fail. They were failing when these trucks were under warranty with very low miles on them.

I have seen these truck hauled to the junk yard rather fixing this transmission due to the high cost.

This is not an easy transmission to work on. I would suggest most people don’t attempt to open it.

This site, with illustrations, is about the bearing difference:
http://www.transonline.com/transDigest/magazines /1...

In 1991 it was referred to as NVG 5LM60
NVG= New Venture Gear

1993 New Venture Gear releases the NV3500. Externally the earlier GM units "look like" the NV3500 however internal components were extensively re-designed.

The NV3500 uses a single-rail shift system, wherein all of the shift forks for all gears are actuated by single rail, as opposed to the three-rail shift system on many gearboxes. The single-rail system reduces complexity while providing enhanced shift feel.




I would completely avoid the first design transmission (1988-1990), because of it bearings, which have such a high failure rate, and it is horrible to work on.

On the 5LM60, NV3500 I would always check the transmission fluid because it should not have 80W-90 fluid it. Avoid any transmission with the wrong fluid in it. 80W-90 is to thick and will cause problems. The fluid that should be in it is very much like 5W30 motor oil.

The NV4500 uses Synthetic 75W-90,API GL-4 gear lube, which is thick.

Personally I would look for a NV4500 because it is stronger, more trouble free and much easier to work on. It looks much different because it is a “top loader”. If I were going to used something other then the NV4500, then I would want the NV3500 which began production in 1993.
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