Rear end rebuild recommendations
Burning Brakes
Joined: Jul 1999
Posts: 923
Likes: 164
From: Hudson NH
Jim is correct - the old RG non OD 5-sp transmission will fit nicely however there are some minor mods required to make it fit. The transmission mounting bracket will need to be slightly modified, and if you're running the factory cross member - that may have to be notched to clear the shifter linkage. You'll definitely need to notch it if it's a Long shifter; you may be able to get away w/o notching it w/ a Hurst shifter.
Oh, one other piece of advice...be wary of letting Jim drive your car w/ that transmission...ask me how I know...
Oh, one other piece of advice...be wary of letting Jim drive your car w/ that transmission...ask me how I know...
Le Mans Master
Joined: Jun 2019
Posts: 7,668
Likes: 2,473
From: Indiana
advice given to me here.
happy to report thousands miles. perfect.. and removing the springs and dialing in posi seems like it has tighter/ locking up easier posi.. IMO (chirps more on turns
)https://www.corvetteforum.com/forums...ay-advice.html
spring new here
https://www.corvetteforum.com/forums...ispreloading=1
transmission clutch rebuild here
https://www.corvetteforum.com/forums...r-etc-diy.html
Last edited by interpon; Dec 14, 2022 at 09:11 AM.
Thread Starter
Instructor
Joined: Aug 2013
Posts: 226
Likes: 34
From: Dallas/FTW Texas
Thread Starter
Instructor
Joined: Aug 2013
Posts: 226
Likes: 34
From: Dallas/FTW Texas
I've got a buddy selling a real nice Richmond 5 speed that came out of a Vette. They are NON-O/D....so 5th is 1 to 1. You stick with stock 3.08/3.36 or whatever rear gears. They have a real steep 1st gear (3.29) and 4th is underdrive..so it's like having 4.10's in 4th...and then click to 5th and cruise. They fit in same spot as a Muncie. His has the shifter and output yoke you'll need to bolt it all in.
I ran one in my car for years with a 427 and for a good while with the 540 and loved it.
Let me know if interested and I'll put you in touch. It's located just an hour or so south of Dallas.
JIM
I ran one in my car for years with a 427 and for a good while with the 540 and loved it.
Let me know if interested and I'll put you in touch. It's located just an hour or so south of Dallas.
JIM
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
I was wondering what you were doing to get 450 hp out of a L46?
As I built up my L82 parts started failing. Never a big deal. I was always able to limp mode home with bad noises coming out of the differential or a failed half shafts ujoint. You do need to inspect the stub axles end play and outer axles. Like above posted the Spicer ujoints. You also need the small weaker half shafts updated to larger diameter
It's very expensive to just shotgun everything and not needed till things fail. Ive upgraded Muncie trannies with Italian bigger shafts and gear set. But ultimately you need versions with stronger cases.
As I built up my L82 parts started failing. Never a big deal. I was always able to limp mode home with bad noises coming out of the differential or a failed half shafts ujoint. You do need to inspect the stub axles end play and outer axles. Like above posted the Spicer ujoints. You also need the small weaker half shafts updated to larger diameter
It's very expensive to just shotgun everything and not needed till things fail. Ive upgraded Muncie trannies with Italian bigger shafts and gear set. But ultimately you need versions with stronger cases.
Thread Starter
Instructor
Joined: Aug 2013
Posts: 226
Likes: 34
From: Dallas/FTW Texas
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
You need to remember that the original C-5 ZO6's were only 405 HP and a 7000 rpm red line.
When someone at a car show starts telling me that they have 450 HP
Thread Starter
Instructor
Joined: Aug 2013
Posts: 226
Likes: 34
From: Dallas/FTW Texas
Even though I will be assembling the motor, it's not entirely a "home build". Mark (VortecPro) is about 4 hrs south of me. I'm taking the heads, block and crank to him. He's going to port the heads and work the crank and block the same way he did with the build in that post, I'll probably end up using the same cam even though he thought he could get more with a different one. I don't really want more because of the driveline upgrades I'd have to do to handle it.
Besides, 450hp is plenty for me
Besides, 450hp is plenty for me
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Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Even though I will be assembling the motor, it's not entirely a "home build". Mark (VortecPro) is about 4 hrs south of me. I'm taking the heads, block and crank to him. He's going to port the heads and work the crank and block the same way he did with the build in that post, I'll probably end up using the same cam even though he thought he could get more with a different one. I don't really want more because of the driveline upgrades I'd have to do to handle it.
Besides, 450hp is plenty for me
Besides, 450hp is plenty for me
Okay! I just didn't know exactly what you were doing and that you need heads flowing 260 CFM and quite a big cam. I hot rodded a 355 with a single plane, C/R, heads. and cam. I had a th350 and the first time driving it the heads lights barely came up as you were driving it from little vacuum and I had to up the stall to 3000 with a 9.5 inch TC. It was actually fun. 3.55 rear and consistent 12.08 with slicks
Is my vette stock?? HAHA
Joined: Oct 2015
Posts: 20,235
Likes: 9,376
From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
It's very doubtful that you can create that same dyno graph on a home build. With 350 ish ci it would require higher compression and heads with the flow numbers of AFR 180 or even 195 heads, perfectly dialed in cam of solid tappet or hot H-Roller, matching intake, good headers.
You need to remember that the original C-5 ZO6's were only 405 HP and a 7000 rpm red line.
When someone at a car show starts telling me that they have 450 HP
You need to remember that the original C-5 ZO6's were only 405 HP and a 7000 rpm red line.
When someone at a car show starts telling me that they have 450 HP