WTB- 4.10 rear end (speedo conversion a plus!) - ZR-1 Net Registry Forums

billschroeder5842 · 07-31-2022

Hey all,

I'm looking for a 4.10 gear for my '91. I have a small differential fluid leak that I eventually (probably a late fall/winter project) attend to. For the moment I wipe down monthly and keep an eye on the fluid.

So, I figured as long as I have to drop the entire rear end for the leak, I might as well swap/upgrade the rear end to a 4.10. I've read from the people who have made the swap and they all rave about how it is just an instant improvement. I've read Mark Haibecks articles on the 4.10 swap and I'm sold.

So, does anyone have a 4.10 and speedo conversion they are looking to part with? Or, know anyone has a line on anyone else who has one?

Thanks!

G8nightman · 07-31-2022

I have viper gears with the speed correction gear and pumpkin rebuild kit pm me if you are interested

Sent from my iPhone using ZR-1 Net Registry

WARP TEN · 08-02-2022

Agree with your thinking Bill. I had Marc do 4.10 swaps for both my '93 and '95. Marc got the speedo gears for me; did you check with him for them? I would imagine he has a source. You will definitely enjoy the new 4.10s. I understand you plan to do the swap and setup yourself but if not, Marc and Bob have done this many times and are very good at it. --Bob

CamP · 08-03-2022

Bill, talk to Corey Henderson. His gear guy installed a set of gears in a spare pumpkin for me and they are whisper quiet. He also turned it around quickly. Corey even had the unobtainable 4.30 speedo correction gears I needed.

billschroeder5842 · 08-03-2022

Quote:

Originally Posted by CamP

Bill, talk to Corey Henderson. His gear guy installed a set of gears in a spare pumpkin for me and they are whisper quiet. He also turned it around quickly. Corey even had the unobtainable 4.30 speedo correction gears I needed.

Good idea and will do.

07-31-2022	#1
billschroeder5842 Join Date: Nov 2016 Location: Southlake, TX Posts: 584	WTB- 4.10 rear end (speedo conversion a plus!) Hey all, I'm looking for a 4.10 gear for my '91. I have a small differential fluid leak that I eventually (probably a late fall/winter project) attend to. For the moment I wipe down monthly and keep an eye on the fluid. So, I figured as long as I have to drop the entire rear end for the leak, I might as well swap/upgrade the rear end to a 4.10. I've read from the people who have made the swap and they all rave about how it is just an instant improvement. I've read Mark Haibecks articles on the 4.10 swap and I'm sold. So, does anyone have a 4.10 and speedo conversion they are looking to part with? Or, know anyone has a line on anyone else who has one? Thanks! __________________ Bill Schroeder Texas Proud! 1991 Corvette ZR1 #1388 2015 Challenger Scat Pack Shaker Last edited by billschroeder5842; 07-31-2022 at 03:43 PM.

07-31-2022	#2
G8nightman Join Date: Dec 2007 Location: NYC Posts: 1,182	Re: WTB- 4.10 rear end (speedo conversion a plus!) I have viper gears with the speed correction gear and pumpkin rebuild kit pm me if you are interested Sent from my iPhone using ZR-1 Net Registry __________________ 90 Chevy ZR1 LPE #2315 'SOLD' 90 Chevy ZR1 LPE #2774 'SOLD' 91 Chevy ZR1 Callaway aerobody 91 Chevy ZR1 #1512 91 Chevy ZR1 #951 95 Chevy ZR1 #338 'SOLD' 91 BMW 850i 94 BMW 850csi 95 BMW 850csi 94 Lotus Esprit S4 07 Benz CLS550 06 BMW M5 "SOLD"

08-02-2022	#3
WARP TEN Join Date: Apr 2007 Location: Lake Bluff, IL Posts: 2,036	Re: WTB- 4.10 rear end (speedo conversion a plus!) Agree with your thinking Bill. I had Marc do 4.10 swaps for both my '93 and '95. Marc got the speedo gears for me; did you check with him for them? I would imagine he has a source. You will definitely enjoy the new 4.10s. I understand you plan to do the swap and setup yourself but if not, Marc and Bob have done this many times and are very good at it. --Bob __________________ 2016 Long Beach Red Z06 #10281 "POPS Z" 1995 Polo Green #409 "WARP TEN"--Haibeck 350/510 package, 4.10s, Hurst, Stock Exhaust with QTP Cutouts --Sold but still running strong 1993 Quasar Blue #161 "HIL KING" --Sold but still running strong, now with more than 120,000 miles 1967 Marlboro Maroon/Saddle Corvette Coupe 300 hp/4-spd --Sold a long time ago ZR-1 Net Registry Founding Member #95 NCM Lifetime Member Favorite Quote--Attributed to Mickey Thompson: "Too Much Horsepower is Almost Enough"

08-03-2022	#4
CamP Join Date: Jun 2012 Location: fort worth Posts: 183	Re: WTB- 4.10 rear end (speedo conversion a plus!) Bill, talk to Corey Henderson. His gear guy installed a set of gears in a spare pumpkin for me and they are whisper quiet. He also turned it around quickly. Corey even had the unobtainable 4.30 speedo correction gears I needed. Last edited by CamP; 08-03-2022 at 10:17 AM.