Is it hard to rebuild a rear end?
A complete rear differential replacement includes replacing the housing, gears, bearings, and seals. The average time it takes a certified mechanic to perform a differential rebuild at a shop is usually three to five hours. A rebuild on a commercial vehicle by someone without prior experience could take much longer.
Is a 3.73 axle ratio good for towing?
A 3.73 ratio is suitable for regular light towing. If you plan on towing a fifth-wheel trailer or anything heavier than 5,000 pounds, you should consider a 4.1 axle ratio. A 4.1 ratio allows a towing vehicle to start moving without as much throttle.
How strong is a 10 bolt rear end?
Here’s what I’ve been lead to believe: 7.5” 10 bolt GM rear: It will take up to about 450 HP IF the axle tubes are welded to the housing and either a differential cover with preload bolts is installed or straps are installed over the carrier bearing caps along with longer bolts.
How does a GM 10 bolt differential work?
Both GM 10- and 12-bolt differentials are a semi-float design, which means that the axles carry the weight of the vehicle on one bearing at the end of the axle shaft. The axle bearings, or wheel bearings, must support the entire weight of the vehicle.
Can You rebuild a 7.5 ” GM 10 bolt?
Recently a friend enlisted me to help rebuild his 7.5” GM 10 bolt. He is resurrecting a G-Body Chevy Monte Carlo and decided to reuse the original 3.73 gears and a factory GM posi unit. We started by getting a rebuilt kit from Motive Gear .
Where are the ears on a GM 8.5 ” rear differential?
All 8.5” 10-bolt rears have two squared-off ears at the 4 and 6-o’clock on the bottom of the pumpkin, that is the #1 tell-tale sign, if you don’t have those, you don’t have an 8.5” 10-bolt. Up until 1988, all GM 8.5” 10-bolts had 28-spline axles, which are thinner than and not as strong as the upgraded 30-spline axles.
How big is the gear in a GM 12 bolt?
This 3.73:1 ring gear fits the GM 12-bolt passenger car carrier. The gear measures 8.8 inches, which is noted in the part code: GM8.8-373. To change gear ratios, you need different pinion gear sizes.