has anyone noticed a diff going from 2.73 to 3.42? i bought 3.42's used off a newer silverado for $50. im trying to find a place to install them. i have a friend that had some installed and they scrued him over so im not going there. does anyone no if tranny places do rear gears. my friend went from 3.23 to 3.75 and there was no diff. so i was wondering if one noticed one thanks

 

You should notice more response out of the throttle. Should be worth the upgrade.

 

I did it, One hell of a difference!

 

I didn't think the silverado trucks used the 7.5 ring gears? as far as I new the s-10 trucks, blazers and astro vans were our only opt. besides other third gens and newer f-bodys

 

accually i think it was a s-10. the gear is a 7.5 10 bolt. the guy at the motorsports place told me they were out of a chey truck that was lifted so he got bogger gears.

 

I went from what I thought was 2.73 to 3.42 gears but it turns out they were 3.08's in the car Still felt a difference swapping in the 3.42 gears.

 

NIGHT AND DAY DIFFERENCE!

It was a different car to drive. No problem burning the tires off. A matter of fact I ruined a med set of tires after 2 days. The change dropped my 1/4 mile from 14.5 to 14.1. And that's going from bairly any traction proplem to alot. Some good tires and you could easily see another couple tenths. I think 3.42 is the lowest gear I would use with a tuned port and automatic. 3.73 would just be too much IMO.