Does anybody know the correct centerline measurement for an e body 4 speed? Maybe from the center of the tailshaft to the floor pan? My engine is sitting low in the back and I'm trying to determine if the engine is too high or the transmission is too low. I can't really help with the measurements as we run an auto but I had a similar problem on my '74 Challenger. The box section where the trans mount attaches to was pulling away from the unibody, the welds have given way probably due to engine torque and / or a few hard landings from big wheelstands. I welded it back on as best I could but still had to shim it under the trans mount pad to get it right, IIRC it was around 1/4". HTH's  PS. My aftermarket K member also lowered the engine as my 2 1/4" headers will attest too 
Last edited by Tig; 04/25/23 08:38 AM.
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials.
9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge.
RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
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