i read 4crawlers write up on the diffrent gearing for the 88 trucks n runners.

to cut it short bad vibrations led me to a dying u-joint (np) but i decided to drop the shafts to see the color codes.

rear-yellow indicating 4.56

front- red-chip on bottom of nut. nut had a flat slant in it

as far as i know nothing has ever been changed on the truck (according to my grand father who bought it brand new)

 

You've approached the problem from the wrong angle. Literally.

You don't need to get down on the ground.

Instead read this.

 

Nevermind the color, what is the Axle code on the info plate?

 

it was g252 but i wanted to check the color as well shoulda stated that previously , and i already knew about the newbie gear info page. i knew the uj's needed to be replaced so i saw that it's wasn't a waste of time to look anyways sorry

 

to tripple check.....

http://www.5speedtransmissions.com/d...ear_ratio.html

 

started to do that then it got colder

 

pretty sure by now that both are 4.56 i jsut have to replace my cv shafts (what's causing the clicking noise) and the uj to end to vibration

 

btw anybody have an idea what this is for? mines broken

is it even important or can i just block it off and forget about it?

 

I'm fairly certain that's the VSV for the PAIR. Important? Depends, do you need to have the emissions checked by DEQ to register the vehicle legally? If not then no. Go ahead and block it off.
http://personal.utulsa.edu/~nathan-b...20pulsedse.pdf