Going from 3 rib bus trans to IRS type 1

[Krochus]

Yes I know backwards from the way most people would be going. But in a chassis built around a three rib bus trans would there be and dimensional constraints installing a type I trans?

I ask because partly my trans is a little noisy in 4th and in need of some TLC but mostly because for a street rail it's about as sporty to drive as a 66 GMC with a 305 v6 and a sm465. I make two shifts before I get through an intersection, I'll shift from first within the length of the buggy. A taller 1'st would be welcome as well as a taller overall final drive.

[DSTMULE]

Bigger rear tires?

[Krochus]

[joemama]

In my fiberglass buggy, I went front a swing axle with 4.37 to a 5 rib. First thing I noticed, is that its not as sporty, or fun on the street. Its also noisier, and slower to shift. I hope it will be better when I take it offroad up in the mountains.

[joemama]

Oh yeah. When I went from type 1 to bus, I had to change the front mount, also had to weld in new rear mounts. Also, the trans is not really quite centered. So based on that, I think you will have to do some reworking.

[BFB]

i went from 3rib to type 1 on one of mine several years ago, mostly because its a street buggy and i already knew from a previous one that i swapped a 3 rib into that it'd be no good for highway, both of them turned almost 4000 rpm at 50 mph with 31's. swapping either way is no big deal just get the right mounts, you gotta figure that if your torsion tube is out of a type 1 then a type 1 trans is a factory fit...