so i cleaned my truck up, wash and wax. looks good now but needs a lot of work with swirls and such. might get more pics tomorrow:






and thanks to ron at rons machining service, i got 4.88 motive gears and a truetrac system. hopefully installing these soon when i get free time to bring my truck to the shop, sucks that i DD it:





also picked this mag-hytec diff cover up for added fluid:



anyone recommend anything to use for diff fluid? i was gona use royal purple if not the GM stuff.

 

Don't run synthetic gear oil with that truetrac. I run Castrol Hypoy C 80-90 in mine.

 

any reason no synthetic? figured that would be good for the gears.

 

ive heard that too, but dont know why

 

what gears are you running stock?
4.88 seems a bit too steep if your tires are 35"

 

im running 3.73's. the equation to get back to stock performance is 4.56's. ill be running what other guys do for performance going from 3.73's to 4.10s. it will only be about 150 more rpms at 75(around 2400-2500)

 

Looks good, I think you will like that gear choice.

 

read the paperwork that comes with your differential. it will tell you what type of fluid to use... I know my auburn said DO NOT USE SYNTHETIC FLUID... I believe the trutrac will say the same.. just read it and follow directions...

 

i dunno if this is true but, i heard the SYNTHETIC FLUID will make the tru-trac make noise. like i said i dont know for sure...never added the synthetic but i dont have it in mine

 

Yep instructions say not to run synthetic.