- What is the difference between single adjustable, double adjustable and "R" series type shocks?
Single Adjustable shocks mean that when you adjust the shock looser or stiffer you are adjusting both the rebound and the compression together, the shock will be loose or stiff both ways. Double Adjustable shocks mean that you are adjusting the rebound and the compression independently. You co ...
- What is the difference between standard and gun drilled axles?
Standard axles are solid. Gun drilled axles have a bore drilled through the length of the center of the axle (like a gun barrel) to reduce weight. Gun drilling is only available on 33, 35 and 40 spline axles.
- What is the difference between the 12 Bolt, Ford 9" and Dana 60 rear ends? Which should I get?
The main difference between a GM 12 bolt rear end, the Ford 9" rear end and the Dana 60 rear end is the size (and strength) of the ring gear. The 12 bolt rear end has a 8.875" ring gear, the Ford 9" of course has a 9" ring gear and the Dana 60 has a massive 9.75" ring gear. Obviously, the stron ...
- What is the difference between the M9 and a standard Ford 9" rear end housing?
The standard Ford 9" housing is a beefier cousin of it's OEM counterpart. They are made from new heavy duty 9" banjos that are reinforced in critical stress-point areas and thickened up considerably compared to an OEM Ford 9" rear housing. The Moser M9 housing is made to not only withstand the ...
- What is the difference between your Extreme Duty and Top Gun driveshafts? What are the HP ratings? Which slip yoke do you recommend?
Both our Extreme Duty and our Top Gun driveshafts are made with 3.00" x .083" wall 4130N chrome moly tubing. The Extreme Duty driveshafts use Spicer 1350 weld yokes on each end of the driveshaft (what holds the u-joints). The Top Gun driveshafts use forged chrome moly 1350 weld yokes on each end ...
- What is the difference between your Pro-Series and your Standard Duty torque arms?
Spohn Pro-Series Torque Arm vs. Spohn Standard Duty Torque Arm: See the video tour on the bottom of this page. What is the difference between our standard crossmember mounted torque arms and our Pro-Series crossmember mounted torque arms? We knew you'd ask, so here it is. We've been building cr ...
- What is the overall width of your Pro Touring and Pro Series rear sway bars for the 1964-1972 GM A-Body and the 1978-1987 GM G-Body?
We get a lot of requests from customers wanting to know the overall width of our Pro Touring and Pro Series rear sway bars for the 1964-1972 GM A-Body and the 1978-1987 GM G-Body to see if they will clear the various custom set ups they are incorporating. That information is: Pro-Touring Rear S ...
- What is the weight difference between mild steel and 4130 chrome moly on your 8 point roll bars and 10 point roll cages?
Our 8 point 4130 chrome moly roll bars are approximately 20 pounds lighter than a mild steel 8 point roll bar. Our 10 point 4130 chrome moly roll cages are approximately 30 pounds lighter than a mild steel 10 point roll cage.
- What modifications are required to install 1982-1992 GM F-Body rear disc brakes on a Moser rear end?
See the .pdf attachment below for the schematic. This shows what is required to install 1982-1992 Camaro / Firebird rear disc brakes on a Moser rear end.
- What rear end gear ratio should I run for my application? Gear ratio calculator inside...
To determine the best rear end gear ratio for your application we recommend using this handy rear end gear ratio calculator.
- What rear u joint do I need for a Moser Engineering or Strange Engineering rear end?
All Moser Engineering and Strange Engineering rear ends come equipped with a 1350 pinion yoke. The only other option Moser offers is a 1310 pinion yoke, but only if you specifically request it. We recommend going with the standard 1350 pinion yoke as it is bigger and much stronger. How does this ...
- What size u-joint is on your driveshaft? Can I order one for a stock rear end and switch to a 1350, 1330 or 1310 rear end later?
Yes. All of our driveshafts are built with 1350 weld yokes on the front and rear. If you specify you have a 1310, 1330 or a stock rear end we use a 1350 to X conversion u-joint. So, if later down the road you get an aftermarket rear end that has a 1350 pinion yoke, you would simply remove the c ...
- What size wheels and rims fit over the 11" rear drum brake kit for aftermarket rear ends?
The 11" rear drum brake kit for aftermarket rear ends will fit 14" or larger rims.
- What spline axles and center section do I need for a rear end? What is the torque rating on the axles?
How to determine what spline axles and center section you need when ordering a new aftermarket rear end What size axles should you be running to be sure that you will not break one? A simple formula can be used to help you find the absolute maximum torque your car can put to the ground. To ...
- What spring rate should I run on your Part #736 rear coil over kit for 1982-2002 GM F-Body?
Part #736 Rear Coil Over Kits Spring Rates: For drag racing and street/strip applications we recommend a 150# spring. For road racing/handling, 170# - 200# or a variable rate.
- What spring rate should I run on your Part #737 Pro-Tour front coil over kit for 1982-1992 GM F-Body?
Part #737 Pro-Tour Front Coil Over Kit Spring Rate Recommendations: Street/Good Handling: 300# Road Racing: 325# - 350#
- What spring rate should I run on your Part #738 Pro-Drag front coil over kit for 1982-1992 GM F-Body?
Part #738 Pro-Drag Front Coil Over Kit Spring Rate Recommendations: Small Block/LT1/LSx/V-6: 175# Big Block: 200#
- What spring rates do you recommend for the Q-OED7855P, Q-RC7855P and Q-DOE7855P front coil over shocks for the 1993-2002 GM F-Body?
When running the QA1 OED7855P, RC7855P or DOE7855P front coil-over shocks we recommend the following QA1 front spring rates: 275# springs: A lightweight (< 3,000 lbs.) drag only car 300# springs: A full weight (> 3,000 lbs.) street/strip car 325# springs: A full weight (> 3,000 lbs.) s ...
- What transmission mount bushing do I need to use with your 1982-1992 F-Body, Camaro, Firebird transmission crossmember?
If you’re using a stock type transmission mount bushing that has a male stud hanging out of it, you can not use this type of mount with some of our crossmembers. We recommend using a polyurethane transmission mount, or if you want to stay with rubber, get a transmission mount from a 1965 ...
- What type of grease should I use to lubricate my polyurethane bushings?
Polyurethane bushing manufacturers advise to never use a petroleum based grease for poly bushing lubrication. Polyurethane should only be lubricated with one specific type of grease to insure long bushing life, and squeak-free performance, Silicone based synthetic water-proof grease. We've foun ...