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Gear Swap

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Old Aug 11, 2004 | 01:16 PM
  #1  
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Mike Howser
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I have an 86 Automatic with gear option GU-2 and want to change to 3.73 gears. I have been told:
1) they no longer make these gears for an 86
2) they are available but make alot of noise

Evidently it is difficult to find this set for such an Automatic with the Overdrive feature.

Where can I find a set of 3.73 gears that will work?
Thanks
mike
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Old Aug 11, 2004 | 01:19 PM
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If you do a search on l98 gear swaps you will find most say the 3.07's are the perfect match for an l98. Just thought I would bring that to your attention before your're set on the 3.73's.
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Old Aug 11, 2004 | 01:27 PM
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From: What did the 5 fingers say to the face? SLAP!!
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How can you not find 3.73's for a Dana 36?! They are everywhere.
http://www.precisiongear.com/dana36.htm

Like Wildman said, unless the engine is heavily modified, 3.07's are a better choice.
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Old Aug 11, 2004 | 02:13 PM
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Originally Posted by flyersfan1088
...Like Wildman said, unless the engine is heavily modified, 3.07's are a better choice.
Which means you'll probably have to swap a 3 series Dana 36 with the 3.07s already in it for your 2 series diff because I don't believe anybody makes 3.07s for a 2 series carrier. Actually, that's probably a good thing as it's something you could potentially do yourself. There's a Tech Tip on swapping in a Dana 44 rear but the R&R is the same....

https://www.corvetteforum.com/techti...=218&TopicID=2
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