**help!!-th350 to vh-help!!**

[ow2839]

Hi all,

I have a brand spanker 304/TH350 combination in my VH SLE. I bought the TH350 crossmember mount believing that it, and the original trimatic crossmember, would bolt straight up. NOOOOoo.

I've double checked with the supplier and the mount is correct. So, do I need a specific TH350 tranny crossmember? And If so why the *&%@ can't I find one advertised or mentioned anywhere!!

Talk about frustrating, Please HELP!! :bang::bang::bang:

 

[383 hatch]

Well, i know in HQ-WB the Trimatic & Turbo use different crossmembers as the mount is in a different spot. So, i can only assume the same applys for early Commodores.

 

[ow2839]

Ive heard that, but the Commodore has 3 sets of holes for three different trans (t350, Tri and T400) so I assumed would use same crossmember. The Crossmember fits, but neither the triatic or aftermarket t350 mount will fit...

 

[383 hatch]

When you say the mount won't fit, where exactly doesn't it fit?

 

[ow2839]

The turbo mount is too big and wont allow the crossmember to sit on the rails and the trimatic mount is too small, ie gap between the box and crossmember

 

[ari666]

too high? as it the trans hits the floor?

 

[RVK 355]

what you need is a 6cyl trimatic rear cross member and some half in spacers between the cross member and the floor pan where it bolts up. HTHs

 

[ow2839]

Hi all,

I got a sugggestion on a different forum which was: find a bit of flat plate drill mounting holes and use the original trimatic mount.

I could only find a piece 10mm thick, but used it anyway with the final piece being about 80mm x 740mm x 10mm. It fits perfect!!

I don't know what the rego boys will say but it s gotta be at least as strong as the original, and with all new bolts I reckon its all good.

I've posted this so noone else has to go through the searching and phone calls I had to, it's amaxzing that with such a common swap people don't have a clue!

Cheers to all who offered advice, I hope I can return the favour one day. :thumbsup:

 

[dirt drifter]

i did this exact swap a few years ago, from memory i got a crossmember and bellhousing adaptor off castlemaine rod shop