Rear end gears ????
Melting Slicks
Joined: Jan 2000
Posts: 3,418
Likes: 1
From: NW Chicago Suburbs
Re: Rear end gears ???? (vettes)
My 92 has 3:45 rear.What is a good upgrade for street and autocross.
Cost??problems??
Cost??problems??
Eric
Melting Slicks
Joined: Jan 2000
Posts: 3,418
Likes: 1
From: NW Chicago Suburbs
Re: Rear end gears ???? (PoloGrnC4)
Polo,
The best gears for an auto/LT1 are 3.54 or 3.73 because the overdrive in an auto is 0.7. A 4.10 gear in an auto is really rev'ing on the freeway. A 6-speed/LT1/4 has a 0.5 overdrive, so you can get away with a little more gear without excessive revs in the freeway.
BTW, for L98, the best gears are lower, like 3.45 for a 6 speed, 3.07 for an auto trans.
Eric
The best gears for an auto/LT1 are 3.54 or 3.73 because the overdrive in an auto is 0.7. A 4.10 gear in an auto is really rev'ing on the freeway. A 6-speed/LT1/4 has a 0.5 overdrive, so you can get away with a little more gear without excessive revs in the freeway.
BTW, for L98, the best gears are lower, like 3.45 for a 6 speed, 3.07 for an auto trans.
Eric
Instructor
Joined: Dec 2001
Posts: 114
Likes: 0
From: Rancho Palos Verdes CA
Re: Rear end gears ???? (vettes)
My 96 LT4 MN6 has 4.11 gears from Tom's differentials and I have to say it is the best mod I've made... it will put a smile on your face period. 0-100 improvement is dramatic and there is plently of top end left. 6th gear now pulls nicely. Just my opinion...
Cost for R&P plus full install kit (bearings etc) from Tom $289
[Modified by Scooby, 9:37 PM 7/19/2002]
Cost for R&P plus full install kit (bearings etc) from Tom $289
[Modified by Scooby, 9:37 PM 7/19/2002]
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Advanced
Joined: Jun 2002
Posts: 71
Likes: 0
From: Hummelstown Pa.
Re: Rear end gears ???? (vettes)
I have a '93 auto and I put 373's in it. The bad thing was I ordered a new rear end from Mid Atlantic and it came through with a very bad hum. The MA vendor said I didn't give it the proper brake in period. The mechanic who installed it told me about the hum the day I picked it up. The vendor and Mid Atlantic would not take it back and I was stuck with the rebuild charge. It turned out that the pinion gear had a crack in it. So when push comes to shove it really cost me over $2000 and should have only cost me @ half that. I'll never deal with mid atlantic again. They more or less said too bad, so sad, don't call us because we don't want too hear it and don't give a rats a@#. They don't stand behind their vendors.
Sorry, you got me going on a sore subject.
Sorry, you got me going on a sore subject.
