OBS Chassis
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OBS Chassis
1988-1998
No Limit OBS Chassis will deliver the best in handling, ride quality, and performance for your classic hauler. Each Chassis is custom built to your specifications. These chassis include our famous No Limit Wide Ride IFS (which includes a power rack) with a 61 ½” track width and our proven No Limit Fat Bar 4-Link for the rear, which is a H.D. 9” Ford with 31 Spline Axles. The main chassis platform is 2x6x.120 wall rails, with a stout 2x6x.188 wall x-member. Exhaust porting and a drive shaft loop is standard. The formed front and rear rail sections are 2x6 blended down to 2x4x.188 wall. Truss style engine mounts for SBC, BBC, and LS are standard. The Trans mounts are adjustable and can accept anything from a powerglide to a T-56 6 speed. (Aftermarket overdrive units will not fit)
Base Chassis includes the frame, cab, bed and bumper mounts, complete Wide Ride IFS front, and Fatbar rear suspension with billet coilovers. Moser H.D. housing and 31 spline axles. Front Splined Sway Bar, Hard Brake Lines
All OBS Are Raised Rail Chassis- These chassis still use OE style body mounts but the bed floor (inside the box) must be raised 4" to 5" to clear the higher frame rails. Also, there may be a little trans tunnel work required, depending on the transmission used. We include all body and bed mounts to help make it easier. These chassis usually have a ride height of 5" to 6" at the bottom of the rocker.
Coil-Over Shocks- Viking double adjustable coil-over shocks come with the base chassis.
Viking-Double Adjustable (rebound and compression). Great ride and handling. Compression side adjustment may allow for a better Drag launch. Great for a cruiser as well as some spirited track time.
Our standard axle is a heavy duty stamped housing with Big Bearing ends and 31 spline axles. These can also be built with fabbed housings, added back brace, and a choice of 33,35, or 40 spline axles depending on the horse power level. Some may be better for cruisers and drag racers.
Floater Axles-Floating axles may be new to you, but not to the performance world. Using a floater hub (the hub and bearings are on the outer axle tube) the corner forces are kept on the housing tube, leaving the axles shaft to only deal with acceleration forces. While we can beef them up with fabbed housings and back braces. Floaters are limited to 31 axles. Floaters roll easier, with less drag and can easily take 850 HP with street tires. Autocrossers, Track day Warriors and Canyon Carvers, this is for you.
Sway Bars-OBS chassis are forced to use a splined front bar due to the chassis design. *We also offer splined front and rear bars as upgrades. Front bars can be 1 1/4" -48 spline, appx 445 lb bar rate or 1 3/4"-49 spline with appx 1140lb bar rate. Both are adjustable. The 1 1/4" bar is great all around choice. Hard core autocross and road course drivers will want to step up to the Big Bar. Rear bars are 3/4" solid bars with aluminum splined arms. this is plenty, any more than this will make the truck too loose.
Plumbing-brake line plumbing is standard on all chassis. All of the hard line plumbing is done. We now offer flex hoses, custom fit to each chassis build and including the connection hardware. Fuel Line plumbing is an option. Base hard lines are 3/8" or #6 in size. We can also do 1/2" #8 and 5/8" #10 in aluminum hard lines. Also available are premade stainless steel flex hoses from the tank to the hardline bulkheads. You may want to think about adding these.
CHASSIS BUILD TIMES ARE ABOUT 14-16 WEEKS USUALLY BUT GIVE US A CALL TO DISCUSS.