NEED HELP!!! 1988 CHEV 1500 4X4

[elijah890]

Hey guys. just started my build. I have an 88 1500 4x4 6inch suspension lift 3inch body. I have just ordered 38x14.5 toyo m/t's for 16inch rims but everyone is telling me I should upgrade to the 2500 rear end and front diff and cv shafts. Not sure what to do or if it will even make a difference.
Thanks
ELI

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[mattjslaunwhite]

what rear end do you have now? you will want to run 4.10 gears with that size of a tire just to get it moving lol, im sure the others will pipe in soon with more info tho

 

[98_k1500]

I ran 35's on my half ton. Had 3.73 gears. Power was never a problem, and i never had any trouble at all out of my front diff/cv shafts. I ended up rebuilding my 10 bolt rear 4 times, I would suggest a 6 lug sf 14 bolt if you plan on wheeling it. You should be able to find one to match your front gears. If you don't put it in too severe of places (lots of snatching and jerking) you will probably be fine.

 

[magimerlin]

Looks like you have 6 lug axles already... Most of those are 2500 axles to begin with..not always but most of the time.. The 6 lugs are usually a sf 14 bolt...... running 38's I would run 4.56's if you have an auto and 4.11's if you have a stick....

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[98_k1500]

But it really depends on the truck's intended use. Let us know a little more about it and what you plan to do with it.

 

[elijah890]

Off-road and hunting use only


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[IOWNJUNK]

What he said.^^^^^

 

[98_k1500]

Does your rear differential cover have 10 bolts or 14?

 

[elijah890]

10


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[TylerZ281500]

upgrade to a 14 bolt semi float with a trutrac or stock posi, and like 4.56s or 4.88s with the 38's, front end wise run the same gears, if you have issues snapping cvs and stuff alot SAS would be something to look into in the long run if its just an offroad truck.