post #1 of Old 04-30-2013, 01:03 AM Thread Starter
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1993 YJ Wrangler 
Join Date: Oct 2012
Location: Kodiak
Posts: 120
Determining engine/ trans angle

I'm putting a 4.8 l Chevy vortec and 4 l60e in my yj. I'm thinking I want to do a custom fab cross member for the transmission mount. Even if I don't and re use the factory skid plate with some mods, what sort of angle should I be going for? Keep it sort of the same as stock or drop it down a little to account for the lift. I've got an sye on the 231btw. Opinions?

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post #2 of Old 04-30-2013, 08:18 AM
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1993 YJ Wrangler 
Join Date: Jan 2005
Location: Albuquerque
Posts: 7,385
In mounting a different motor, watch for hood clearance. I wanted my motor up a bit to help with the oil pan not hitting rocks. I ended up the the top of the motor 0" from the hood, the OEM TB hat actually scuffed the hood inside a bit. I later had to swap out the frame, so I mounted the motor 1/2" lower. Since you have an SYE you can tuck the tail a bit higher, or leave it stock, but I wouldn't go nuts with it. I think the super tummy tuck thing is over rated.

'93 YJ, '02 GM 4.3V6, SOA, dual ARB's, 8.8+D30(WarnHubs), 4.88s, 35" BFG KM2s, AX15, NP231+4:1+SYE+2LO, York OBA, Warn M8000.
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post #3 of Old 04-30-2013, 05:45 PM
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1987 YJ Wrangler 
Join Date: Aug 2006
Location: Rockledge
Posts: 912
From what I remember, it is 3 degrees.

87 YJ, TPI 5.7, 700R4, NP231, BDS 3.5" lift, 1" front & 5/8" rear boomerang shackles, Rubicon Dana 44 rear axle, 33" Goodyear Duratracs

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