Topic: drivetrain lift

[84Flatbed]

I'm trying to figure out if my 84 pickup has any drivetrain lift, I ran a straight edge across the frame rails just in front of the trans crossmember mounts and measured straight up to the transmission. Anyone have a 84 or 85 that can tell me where a stock drivetrain sits in relation to the bottom of frame? I'm not sure if it matters but I have the trans that came with the 22r in 84.

[84Flatbed [OP]]

No one? Anyone?

[1985CRAWLER]

stock crossmember? if there is any drivetrain lift at all there should be spacers between the mount and crossmember or an aftermarket cross member like a budbuilt that can be made special for a drivetrain lift.

[84Flatbed [OP]]

The crossmember on the truck is a one off that a PO made. Thats why I'm trying to get a reference off the bottom of frame.

[1985CRAWLER]

looked at mine, i have an 85 with a w56 and have a skys dual case crossmember though but its in the stock position, its flush with the frame, just the little fin on the bottom of my tranny hangs a little less than a 1/2" below frame but that might be due to my blown out tcase mounts

[84Flatbed [OP]]

Thanks, it sounds like my drivetrain isn't lifted, my trany sits about 3/16 above the  bottom of frame rails, at least where I put the straight edge. I think mine is a g52 but it's probably about the same size as the w56.

[kneedownnate]

You should post pics.  Stuff like this is hard to comment on logically without actually seeing it.

[scoutrunner]

Does it have a body lift? And check the motor mounts to see if they are modified.

[84Flatbed [OP]]

Does it have a body lift? And check the motor mounts to see if they are modified.

It has a 1.5" body lift and from what I can tell I don't think the motor mounts have been modified. I was trying to figure out if maybe just the cases and rear of trans had been lifted up some, I don't know how high one can go just raising the crossmember without raising the motor some. If it turns out that the crossmember is raised I'll look into raising the motor.

[84Flatbed [OP]]

I'm still thinking maybe there is some drivetrain lift ha ha. The crossmember mounts to the inside of the frame, the brackets that it bolts to have 2 mounting positions 1.5" apart, same amount as the body lift, it's mounted in the upper holes. I went out and measured bottom of frame to bottom of output flange of rear case (dual cases) and got 3 3/8".

[84Flatbed [OP]]

You should post pics.  Stuff like this is hard to comment on logically without actually seeing it.

[84Flatbed [OP]]

looked at mine, i have an 85 with a w56 and have a skys dual case crossmember though but its in the stock position, its flush with the frame, just the little fin on the bottom of my tranny hangs a little less than a 1/2" below frame but that might be due to my blown out tcase mounts

What do you measure at the rear output flange?