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Can I run 37" tires with your 6 ½" Super Duty kit?
Yes you can per our tire size guide – please see reference.
Can I install a skid plate on my 6" lift with a body lift?
It depends on the year and make of vehicle. Most skid plate applications can be installed with a body lift except 88- 99 K series GM trucks. *Warranty note – a body lift in combination with a Pro Comp suspension kit is not recommended.
Can I run 10" wide wheels with your Chevy or F150 kits?
No you cannot. 8" is the maximum recommended width – see tire size guide.
Can I install a coil spacer with your 6" lift 2WD ’97-’03 F150?
No. Additional suspension components not produced by Pro Comp will void all warranties.
Can I run 40" tires with your 8 ½" lift kit?
No. Please see tire size guide.
Are your shocks lifetime warranty?
Our shocks feature a Limited Lifetime Warranty that warrant it free from defects in workmanship and material as long as the purchaser owns the vehicle on which the product was originally installed.
Do your shocks come with boots?
Our ES1000 series and MX6 shocks come with black boots. Choose from many different flavors for the ES3000, ES9000 and Toxic shocks.
Why doesn’t your Super Duty kit come with the 52480?
Super cab, standard cab and Excursions do not require this kit. It’s an optional upgrade recommended for 2 piece drive shafts only.
Would the 52420 work with your 8 ½" Super Duty kit?
Yes. Be sure to order the additional corresponding front shocks for optimal performance. For the best performance we recommend our MX6 shocks.
How will the kit affect the ride?
It depends on the vehicle and the customer’s preferences. Most straight axle lifts with leaf springs or coil springs will typically ride firmer than stock. Firmer spring rates are required as height increases to lessen body roll and provide stability. More lift equals a firmer ride. Trucks with independent front suspension will normally ride, as well as, or better than stock
If I put the kit on, can it go back to stock?
It depends on the vehicles suspension type. All GM independent front suspension lift applications require cutting of the lower differential mount and bump and extension stops and would require considerable work to return to stock. The 02-05 Dodge 1500 and 96-04 Tacoma kits also require cutting that would not allow a graceful return to stock. Jeeps, 73-91 GM straight axle trucks, Ford Super Duty’s, 94-01 Dodge 1500 and 94-04 Dodge 2500/3500 can be returned to stock.
What is the vibration at low speeds on the Super Duty?
A combination of axle wrap and carrier bearing distortion can be the cause of the launch vibration that is common with stock and lifted Ford F250/F350 trucks.
Traction bars and a balanced driveshaft are two ways to help alleviate the vibration.
What tire and rim can be put on my truck?
See Pro Comp tire size guide.
Are the MX6 shocks really made to be mounted upside down?
We recommend the shock be mounted body up but it can be mounted either way. The MX6 shocks are a mono-tube design; the operating part of the shock is moving up and down in a single tube. Should the tube be dented or damaged, the shock will not function and will require replacement. By mounting the shock upside down the body or tube is tucked out of harms way.
Can I install the kit myself?
We recommend installation be performed by a qualified mechanic. Most kits require above average mechanical skills with an emphasis in suspension experience and the ability to fabricate when necessary.
Where can I get replacement parts?
Call Pro Comp toll free at (800)776-0767 to purchase replacement parts directly or use our dealer locator to find an authorized dealer near you.
How long is the warranty and what will it cover/How will the kit affect my factory warranty?
Please refer to our warranty page.
Why is the front lifted more than the rear for most of your domestic full size truck applications?
Most trucks sit lower in the front than the rear in stock form. The amount of lift in the front is generally more to help provide a level stance.
Where can I purchase Pro Comp products?
Use our dealer locator to find an authorized dealer near you or call Pro Comp toll free at (800)776-0767.
Do I have to run boots?
Shock boots are not mandatory. They are an option that we recommend to help protect the shock shaft and preserve the service life of the seal.
Can I run stock tires and rims with your lift kit?
Yes you can for most lift kits with the exception of the 51020MX kit for the 99-04 GM 1500 pickups, the 57089 and 57289 kits for 86-95 IFS Toyota pickups, all of the 88-04 2wd GM lift kits and any 88-04 GM 1500 kit with dual shock hoops.
How many amps do your lights draw?
6" lights – 7.3 amps; 8" lights – 13 amps
To run your lights do I need a bigger alternator?
No, unless you have enough lights to light up a small stadium.
My add-a-leaf is too long but the right part number. Can I trim it to fit?
This is generally not recommended but add-a-leafs in some applications can be cut to fit. Please contact our Tech Service line for more information at (800) 776-0767 or tech@explorerprocomp.com.
Do I need to get the trucks’ alignment checked after installing the kit?
Yes. The alignment should be checked before and after the installation. Checking the alignment before the installation will tell you if the vehicle may require additional parts or attention so it can be properly aligned after the lift is installed.
How do I know if I have Auto Trac? (GM TRUCKS)
Auto Trac was introduced in 1998 on most full size GM SUV’s. 98-99 Vehicles with GM’s active all wheel drive transfer case NP246 will have 2 selection buttons on the dash labeled Auto 4X / 4 HI and 4 LO / 2 HI. 99 to current vehicles have 4 individual buttons for drive activation.
How much air pressure do I run in my tires?
Use air pressure recommended for your vehicle and tire. Contact Pro Comp Tire and Wheel for additional information. www.procomptires.com
Where can I get instructions?
You can download instructions from this website.
Do you have a kit to fit my vehicle?
Please see application guide.
Where is there a dealer in my area?
Use our dealer locator to find an authorized dealer near you or call Pro Comp toll free at (800)776-0767.
What is the difference with your two reservoir shocks?
Our MX6 Reservoir is a six way adjustable monotube shock. Pro Comp reservoir is non-adjustable.
I currently have your 6.5" kit; do you offer a kit to get an extra 2" on my Ford Super Duty?
Yes. Our 2" hanger kit (P/N 52481).
What size lift do I need for a given tire size?
Please see the tire size guide for more information.
Why has the ride height of my leaf sprung vehicle changed after installation?
It is common for some leaf spring applications (especially Ford Super Duty) to settle 0.5 to 1.0 inch within the first 500-1000 miles of use. Typically our leaf springs will provide more lift than specified and if settling occurs it is within service specifications. These service limits are easily determined if a stock ride height measurement (center of wheel hub – straight up to fender) is taken prior to lift installation and measured again after the lift is installed .
What other modifications will be required if I lift my truck?
This depends on what vehicle and kit you have.
Will too much air pressure affect my ride?
Yes. Your vehicle will wander and ride too stiff. Contact pro Comp Tire and Wheel for more tire information. www.procomptires.com
Why is the size of rims /wheels so important?
These components affect the ride quality, wear and tear on your suspension components.
What’s all the extra hardware in the shock box for and how do I install them?
Our ES Series shocks may have extra hardware for different vehicles/applications. Pick the sleeves/shock bolts that best fit your application and discard the rest.
Where can I get stickers for my rig?
Use our dealer locator to find an authorized dealer near you or call Pro Comp toll free at (800)776-0767.
What makes an MX6 shock better than the rest?
The MX6 has six-way adjustability that adjusts compression and rebound. This shock optimizes suspension performance, ride quality and vehicle stability.
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