Transmission Mount/crossmember Setup With Sm420 And Sbc

Hi I'm just hoping to find some pictures of peoples builds that have sm420 setup. I purchased the advanced adapters transmission mount but I dont like the way it sits. I had to shim the AA trans mount so that the ear of the T case wasnt laying on the cross member. I question if this is right or not because I feel like my T-case should sit lower but even with shims I think its still too high. I would appreciate if anyone has any pictures of their SM420 swapped setups.

Thank you

 

This is a sbc/sm465.

 

The ear of the transfer case sits on a rubber isolator that's about 3/4 thick.

 

What is that, an NP203 or 205? That may have come with the SM465 in the donor truck. Suggest that setup is not relevant when you keep the original Dana 18 transfer case.

 

I'm going to need to build a new crossmember or trans mount because the Tcase ear touches almost an inch before the AA trans mount. Really ****ty design. I just wanted to see what others had for setups to help me understand what would work best.

 

I cut apart my stock one, but I used a Novak adapter for the Sm420 to the D18. I had no issues with the stock crossmember and their suggested isolator/ mount. I only cut apart the crossmember to install an exhaust resonator..

I really like Novak stuff.

 

Can you send me some pics of your setup please. Im curious how far your Transfer case is hanging down and how its matted to the crossmember. I would really appreciate it. This jeep is for my 76 year old dad and its almost done. I've worked endlessly on it over the past year. It really should have been scrapped because the frame and body was so bad. Everything was trashed but he always wanted a Jeep and we had this one so I've been working on it nonstop. Did a 383Vortec swap, SM420 with OD unit. Saginaw power conversion, tilt wheel, cut the tub and moved the seats back a few inches (HUGE IMPROVEMENT!!!). Did a complete rewire on it. So this is the final pieces that I want to be sure about.

 

I think Chris (47v6) would be happy to post the pictures here - no need to take this interesting topic offline. then the pics will be here for any future readers with the same questions.

 

Sounds good. I saw some pics he posted on a different thread. I would really like to see a shot of the T-case from the bottom so that I can see the crossmember if possible.

 

Ya I wouldnt never run without the torque mount on the tcase. Mine works I just dont like it. I'll probably build a new one. I wouldnt mind seeing some other ideas that people have done though. I was disappointed because I figured with the AA trans mount I would only need to drill bolt holes... I had to put a 1 inch spacer under the trans mount because it was resting on the TC ear and not even touching the trans mount. So either that design sucks or I've got something unusually different going on.

 

Don’t know if these will help much, but here they are.

 

They help greatly. Thank you!!!!

I should have used a Novak setup. Thats trans mount is much nicer than the AA version