Title: Re: How to figure out what gears I have in rear end
Post by: zieg85 on February 04, 2015, 03:15:14 am
(Accurate identification using the GM RPO code assumes that the rear end has not been previously modified)
The only true way is to pull the cover and see what ratio is stamped on the ring gear and do the math.
Title: Re: How to figure out what gears I have in rear end
Post by: Irish_Alley on February 04, 2015, 03:20:24 am
lol i miss read the post
Title: Re: How to figure out what gears I have in rear end
Post by: ehjorten on February 04, 2015, 08:44:33 am
When was the last time the rear differential fluid was changed? Perfect time to pull the cover, drain the oil and count teeth and/or read the ratio stamped on the edge of the ring gear.
Title: Re: How to figure out what gears I have in rear end
Post by: BADAZ chevy guy on February 04, 2015, 11:35:13 am
Ya, but watching your little 4x4's pull that huge banner across the screen was kinda cool. lol
Title: Re: How to figure out what gears I have in rear end
Post by: Captkaos on February 04, 2015, 11:39:12 am
As Erik stated the only way to know for 100% sure is to pull the cover.
Title: Re: How to figure out what gears I have in rear end
Post by: cali6shooter on February 05, 2015, 04:36:52 pm
Yea it was changes couple months need to get new gasket other than cork it seems useless I have the 3 speed with granny low almost positive rear end has never been upgraded gear teeth look amazing BTW its 1980 1500 Cheyenne any one know which options Chevy offered in 1980
Title: Re: How to figure out what gears I have in rear end
Post by: Captkaos on February 07, 2015, 09:50:11 am
Factory for an I6 with standard suspension. 2.73, 3.08 or 3.42 depending on the trans.
Title: Re: How to figure out what gears I have in rear end
Post by: cali6shooter on February 11, 2015, 12:52:05 am