my 1987 3/4 ton suburban

**87burb** · 09-10-2009, 01:09 AM

hey again i was wondering im about to start lfiitng up my suburban and i was wondering if 1/2 ton axles would work since its a 3/4 ton and would a 305 motor be ok for it till i can get a 350 built thanks tyler

**2COR517** · 09-10-2009, 08:30 AM

Why do you need new axles? And what is wrong with the current motor?

Tell us a little more about the truck.

**tbplus10** · 09-10-2009, 07:26 PM

If the current 3/4 ton axles are still useable I'd stick with them.
Lift + new (probably bigger tires) = axle breakage, especially on a vehicle as large as a Suburban.
The 305 would work as a temporary engine but I wouldnt expect a lto from it in a large, heavy Suburban.
I guess I dont understand why you want to down grade your Suburban. If it's because you have these parts laying around your time and money would be better spent getting the original drivetrain back in running order before you begin the lifting..

**87burb** · 09-10-2009, 11:20 PM

ok my suburban is independent suspension front end and i have the front and rear ends out of a k5 blazer that i no longer have so there sitting there and thats what i have not enough money to do a 3/4 ton front axle right now and im only gonna put 33's or do you think i should just sell somethigns i have and put a 3/4 ton front axle under it and im gonna put a 350 in it gotta take to the machine shop this weekend thanks tyler

**2COR517** · 09-11-2009, 08:20 AM

Originally Posted by 87burb

ok my suburban is independent suspension front end and i have the front and rear ends out of a k5 blazer that i no longer have so there sitting there and thats what i have not enough money to do a 3/4 ton front axle right now and im only gonna put 33's or do you think i should just sell somethigns i have and put a 3/4 ton front axle under it and im gonna put a 350 in it gotta take to the machine shop this weekend thanks tyler

What year is the Sub in question? No ifs in 87............

**87burb** · 09-11-2009, 08:30 AM

its an 87 had the 454 efi in it

**Crawdaddy** · 09-11-2009, 08:45 AM

Any 4x4 Suburban up to 91 should have had a straight axle in the front and be leaf sprung. If that's the case, the lifting job is ridiculously easy and cheap.