Front Axle Wider Than Rear

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

bucket

Super Moderator
Staff member
Super Moderator
Joined
Aug 3, 2010
Posts
29,146
Reaction score
24,099
Location
Usually not in Ohio
First Name
Andy
Truck Year
'77, '78, '79, '84, '88
Truck Model
K5 thru K30
Engine Size
350-454
This is the precise reason I plan to swap in a GMT-400 era 10-bolt. They are a little bit wider than the 10-bolt used in Squares, and are 30 spline instead of 28 spline (so a little stronger).

It would make more sense to do the 14 bolt semi-floater from a 2wd light duty 3/4 ton truck. Then just have the axles and drums re-drilled for the 5-lug pattern. Or buy replacement axles and drums for a 454 SS truck.

*The 454 SS rear axle would be simpler, but good luck finding one for a decent price.
 

coreys87

Full Access Member
Joined
Sep 13, 2011
Posts
178
Reaction score
1
Location
newyork
First Name
corey
Truck Year
1987
Truck Model
v1500
Engine Size
305
where did you buy the spacers? ive looked everywhere and can not find them
 

foamypirate

Full Access Member
Joined
Jul 30, 2010
Posts
3,302
Reaction score
453
Location
Central TX
First Name
Jake (Mr. Wilson)
Truck Year
1980
Truck Model
El Camino, baby!
Engine Size
5.3L/4L60E
It would make more sense to do the 14 bolt semi-floater from a 2wd light duty 3/4 ton truck. Then just have the axles and drums re-drilled for the 5-lug pattern. Or buy replacement axles and drums for a 454 SS truck.

*The 454 SS rear axle would be simpler, but good luck finding one for a decent price.

That would probably work, but I'd prefer to keep everything to the point where I can use as many factory parts as possible for ease of repair. The 30-spline 8.5" 10-bolt is pretty strong anyway (pretty much as strong as the truck 12-bolts are, lots of mis-information about this out there though). I plan on adding some aftermarket axles, an Eaton 30-spline posi, a girdle cover (keeps the bearing caps under tension to prevent flex), and a solid pinion spacer (prevents the pinion from walking away from the ring gear under load). It should be as strong as I'll need for the power levels I am planning.
 

Latest posts

Forum statistics

Threads
42,207
Posts
911,357
Members
33,708
Latest member
btrain04
Top