Spohn or UMI 700R4/T5 Cross Members
Thread Starter
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Spohn or UMI 700R4/T5 Cross Members
Installation, vibration, mount type, drill and tapping, etc. Any experience, good or bad, would be helpful.
JamesC
JamesC
Joined: Aug 2006
Posts: 12,812
Likes: 110
From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: Spohn or UMI 700R4/T5 Cross Members
the crossmember even worked flawlessly with my tko600 with the help of a couple homemade spacers.
Didnt get a vibe from that, but i did get one with the energy suspension poly mount with the preload plate that comes with the mount, not sure why its there. I replaced it with a prothane one a couple years ago and its been great. Could probably get away with rubber still, if you pickup any bad vibes.
Not sure if one hangs lower than the other.
Thread Starter
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: Spohn or UMI 700R4/T5 Cross Members
I'm running a poly mount currently with a secondary cross member. If the Spohn/UMI have the same height, I should be good--I hope.
Joined: Aug 2006
Posts: 12,812
Likes: 110
From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: Spohn or UMI 700R4/T5 Cross Members
i have the umi one, but with the torque arm attached. Smooth install, fit like a glove. I tapped the extra hole in the subframe for the extra 2 bolts, think it 10mm1.5. Didnt have to drill the extra nut, it was already the right size IIRC.
the crossmember even worked flawlessly with my tko600 with the help of a couple homemade spacers.
Didnt get a vibe from that, but i did get one with the energy suspension poly mount with the preload plate that comes with the mount, not sure why its there. I replaced it with a prothane one a couple years ago and its been great. Could probably get away with rubber still, if you pickup any bad vibes.
Not sure if one hangs lower than the other.
the crossmember even worked flawlessly with my tko600 with the help of a couple homemade spacers.
Didnt get a vibe from that, but i did get one with the energy suspension poly mount with the preload plate that comes with the mount, not sure why its there. I replaced it with a prothane one a couple years ago and its been great. Could probably get away with rubber still, if you pickup any bad vibes.
Not sure if one hangs lower than the other.
Thread Starter
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
.
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