Pete's Handy Work

[XfireZ51]

I believe Marc also has an electronic device to correct the speedo reading.
Recently I installed 4.10s in my 92, but due to the 19” Z06 wheels on the rear, I continue to use the stock speedo. My speedo reads about 2-3mph higher than actual as measured by GPS. The combo of gears and taller wheels/tires comes out to be about a 3.53:1. Close enough for horseshoes and handgrenades in my book. Not worth the. Other

[Karl]

I believe the 4.09/4.10 option is a little over hyped.

It is better for city driving, but you will not get to 60mph in first gear anymore and if your car makes good power hooking up in first is going to be difficult.

If my car did not come with the gears I would focus on adding more power.

[ZWILD1]

I really have been thinking hard about the 4.10 gears as of late. My first 91 had the Watson headers along with the very free flowing early B&B 3 in. exhaust, custom chip and 4.10 gears. I loved how it felt. Current 91 Marc did all the porting along with goodbye to the secondary system, light weight flywheel, and larger throttle body. I guess I should take it to the track with the sticky drag radials and see how it runs.

[Pete]

Thanks John enjoy.

I would suggest installing the intake first before you decide on 4.10 gears.

Pete

[32valvZ]

Originally Posted by Pete

Thanks John enjoy.

I would suggest installing the intake first before you decide on 4.10 gears.

Pete

Most definitely.... the gears are a future upgrade.... If everything goes right, Ill be driving this weekend... Thanks for your help with my questions!

[-=Jeff=-]

Originally Posted by EvanZR1

I'm interested too. Talked to Steve @ Crossed Flags, and he only recommended up to 3.90s as he no longer has a good source for the 4.10s. And yes, you have to change the speedo gear to correct for the rear gears. I know Haibeck lists them.

this is the 4.10 set I have.. I like them in my car..

https://www.justdifferentials.com/D4...4hd-411-oe.htm

[Flyman 27]

I have 4.10s and I love them, a little more shifting but it really livened up the car.
I am headed over to Pete's in a couple weeks for a set of cams! Whoo Hoo!

[32valvZ]

Originally Posted by Flyman 27

I have 4.10s and I love them, a little more shifting but it really livened up the car.
I am headed over to Pete's in a couple weeks for a set of cams! Whoo Hoo!

Lucky Dog!!!

[Karl]

Originally Posted by Flyman 27

I have 4.10s and I love them, a little more shifting but it really livened up the car.
I am headed over to Pete's in a couple weeks for a set of cams! Whoo Hoo!

Oh yeah!

Cams will add another 15 - 25 hp?

[Flyman 27]

Well, my exhaust is presently choked down at the resonator. I am replacing that now while I am getting prepared. So the project will add power by freeing up the exhaust (estimated at 20 hp). Plus I will get a good gain from the cams, so I should be running pretty good by the time this project ends!