Dana 36 Upgrade?
Instructor
Joined: Aug 2010
Posts: 237
Likes: 17
From: San Diego CA
You might keep shopping around - my indie had a D44, pumpkin, batwing, stubs, etc. all in storage - he took my D36 in swap and I paid him a few hundred bucks for the difference and the install. You could just do the gears, but...if you're gonna mess with it...
Le Mans Master
Joined: Oct 2004
Posts: 7,706
Likes: 485
From: Everett WA
C4 of Year Finalist (appearance mods) 2019
Wong's Performance Engineering, Vancouver WA
Corvettes of Auburn, Auburn WA
Brad's Custom Auto,Seattle WA
Thread Starter
Advanced
Joined: Jun 2019
Posts: 73
Likes: 3
From: Olympia, WA
Here in the PNW we are fortunate to have a number of very reputable high end Vette specialty shops. I would suggest that you CALL these shops and see if they may have a 3.07 pumpkin & gear set in a back room from someone else's upgrade and see if they can do a turn-key swap out at a reasonable (to you) price:
Wong's Performance Engineering, Vancouver WA
Corvettes of Auburn, Auburn WA
Brad's Custom Auto,Seattle WA
Wong's Performance Engineering, Vancouver WA
Corvettes of Auburn, Auburn WA
Brad's Custom Auto,Seattle WA
Thread Starter
Advanced
Joined: Jun 2019
Posts: 73
Likes: 3
From: Olympia, WA
There were thousands of LT1 C4s that came with the $50.00 upgrade to the 3.07 ratio. It's really a great step up from the 2.59 almost like going from a V6 to a V8. They are relatively easy to find for sale as many D36 3.07s get upgraded to D44 3.45s. The nice thing about the 3.07 is it still gives you reasonable highway mileage as well as better acceleration.
Last edited by jakey1999; Jul 18, 2019 at 07:38 PM.
Le Mans Master
Joined: Oct 2004
Posts: 7,706
Likes: 485
From: Everett WA
C4 of Year Finalist (appearance mods) 2019
Thread Starter
Advanced
Joined: Jun 2019
Posts: 73
Likes: 3
From: Olympia, WA
From everything I've read and heard including talking with Wong's and Brad's, still waiting to hear back from Corvettes of Auburn, I think you are correct. A speedo gear change isn't required and flashing/programming the PCM can correct the speedometer. Thanks again.
