corbraeater

which is better bolt-in or weld on style,and should i go the double diamond design, or just the straight ones and which company makes the best subframes.

Greed4Speed

WELD!

Best = opinions. Look for thick walled tubing and large plate areas. DD, not worth the extra $. You'll never know the difference. Round or square? Round is great, but square lets you use it as a jack point.

ABA383

Try the search feature as this gets asked often...Go with the weld in type...It'll have to be your preference on which type, doucle diamond, etc...I have the Hotchkis weld in and have had them since 1995..Great for ground clearance, and the powder coating still looks great. If I bought a set tody I'd go with Spohn...Their suspension stuff is great quality and at a good price..

--Alan

TazmanSS

Well I say bolt in, if I need to pull or get at soemthing I can drop, bought slp's, very pleased with them..

RE AND CHERYL

Double diamond weld in.

corbraeater

if i was to use the weld in ones, what would happen if i want to pull the motor from the bottom, would this cause a problem

mourningyou

no, they weld onto the body of the car, not the k-member

TimboTA

Weld-in. No enlarged bolt holes to worry about.

hotpart

This is a very common question we receive. Bolt in units will work great for a short time. What happens is the twisting and flexing of the cars chassis loads the bolts and makes the mounting holes oblong. Once the holes oblong the subframe connectors are free to move under chassis flex.

Deciding on what style subframe connector will be personal preference. The triangle style gets it torsion stiffness from spreading the load through a greater area of the car. The single round tube style gets its strength from just simply being round tubing and if designed properly will tuck up against the lower seam weld area to allow for stitch welding all the way down the car. I would stay away from a single square tube or rectangular design as the torsion stiffness just is not there on square tubing. Square or rectangular tubing is strong in bending but is very weak in torsion stiffness. Good luck on your decision and if you want to get into more detail feel free to email or give us a call.

dst

Another vote for weld in. Thats the only way to go.

LenT1

Hotpart, you mentioned square tubing not as great as circlular. What about square double diamond. Will the triangular squared ones eliminate the down sides of just a straight square tube?

hotpart

Yes the triangular subframe connectors get the torsion stiffness from leverage. The leverage from the triangulated portion going into the center of the car is what helps to eliminate the twisting action of the chassis.

lt1aggie

I've got some weld in SLP subframes (triangular design) brand new I'll sell you. PM if interested.