I am putting 4.10s/4.11s in my car and I have heard that 4.11's are stronger because of the difference in the number of teeth. Are there really 4.11's made for a 10 bolt? If so where can I get em?

Thanks

 

I don't think there is a 4.11 for the 7.5" 10-bolt.

Rich

 

werd

 

slp sells gearsets, but i dont know if htey fit in the stock rear ends. www.slponline.com

 

http://web.camaross.com/forums/showt...ght=4.11+teeth

http://web.camaross.com/forums/showt...ght=4.11+teeth

These links lead me to believe that it is possible to get a 4.11 for a 10 bolt. I will contact motive on monday and see what they can do.

 

i actually think summit racing might sell them

 

I've checked SLP and they only make 4.10 for the 7.5 rear end.

 

motive makes them
9 ring 41 pinion or whatever
a couple of people on here have them, just search for them

 

Does Motive make a good gear set? I'm in the market for 4.11's or 4.10's

 

Ive got a set of GM 4.11's. Haven't installed them yet but I hope they fit. I think they will.

 

GM motive gears are 4.11s even though they're listed as 4.10s, I have a set in my car, they are
37 tooth ring
9 tooth pinion

= 4.11

 

Same here. I destroyed my 4.10s and didn't want to go through a big setup routine so ordered Motive 4.10s again. They came in and were completely different... actually stamped as 4.10s but were really 4.11s. I posted this before in another thread...

 

ahhh, that was the right calculation 9/37
disregard my 9/41 comment everybody, it was late last night

 

Uh huh.

To set the record straight:

41 / 10 = 4.10
37 / 9 = 4.11



So it's MOTIVE that makes 4.11's for the stock 10-bolt, eh? I've always heard they're out there, but never knew WHO built them.

 

So if I call up thunderracing and order motive 4.10's I will get a 37 and 9 gear? I called motive gear themselves and they said they have a regular 4.10 and a performance line gearset. The guy did not know the exact number of teeth on the performance line gear.