1977 cj7

[INTENT777]

Can anyone tell me if the 700r4 trans with the factory GM transfercase will fit in the CJ7? I picked up a 1988 GMC Suburban with the 5.7l and will be putting it the CJ. Also, how about an axel conversion from the 1/2 ton suburban to the cj, good or bad idea? :shades:

 

[jps4jeep]

if your swapping the motor, the transmission and t-case can also get swapped in. I would position the motor as far foward as possible. problem is that depending on what year the suburban is, the T-case may not be very desirable. If it were me, I would use the 5.7, 700r4, and either source a D300 or re-use your d20 (if thats what you have)

as for the axles, keep what you have. I am guessing your suburban is a 87-91 frame, the 12 bolt rear is marginally stronger than your m20, 1 piece chromo shafts and your rear is stronger, plus better gear selections and more aftermarket support. The 10 bolt front axle in the suburban would best be used as a boat anchor. small shafts, joints, and ring gear, little gear selection and little to no aftermarket support. (JUNK) your D30 in stock shape is a better and stronger than a 10 bolt.

Now I am making assumptions on your vehicles equipment based onthe limited info you provided

 

[jps4jeep]

also if your parting out the rest of the suburban, could you measure the rear springs eye to eye, I might be interested in them. (should be 53")

 

[54cj3b]

only thing besides moving motor forward will bee the tail shaft will need the shorter one but yes should fit in the cj7 like a glove also advance adapters has a nice set of motor mounts to help bring motor forward with the right slant and tilt of motor for clearence purposes Ill post a link in a few soon as I find it in my archives

 

[INTENT777]

Thanks for the info. If anyone has any other feed back in regards to this conversion I would love to here it. I am planing on a semi restoration as well. :shades:

 

[54cj3b]

just found the link to those motor mounts
I used these in my 4.3 swap made getting the right front and rear tilt and also with offseting eng to clear drive shaft ect I bolted them in and welded these mounts are like bullet proof

Advance Adapters 713001-S - Advance Adapters Jeep Engine Swap Motor Mounts - Overview - SummitRacing.com

cost a few more bucks but worth every penny