What's new
CK5
Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.

81 short bed. 3/4 ton axles. few questions

84CUCV

84CUCV

3/4 ton status
Joined
Jul 1, 2002
Posts
7,150
Reaction score
2
Location
NJ for now
a family friend was looking for project he ended up with this.. 89 350 in it. Runs great. sm465 and a 208.. Still trying to sort a few things out.. The crossmember for the transmission has one-inch square tubing as a spacer.. The 14 bolt is pointing directly at the transfer case. Doesn't look right to me. I was thinking removed a spacer. Cut the perches often and start again or is there a way to save this? when I was over there I should have got pictures.. Thanks for the help
 
Before you cut the perches, are there any shims under the leaf pack? Remove those if there are. And lose the crossmember spacers, too.

Is the '89 350 TBI-equipped? If so, thats gonna be a damn good truck with the 465 and 208 along with the short wheelbase. Thats a light truck. Much lighter than any Blazer or long wheelbase truck. Should make for some pretty interesting fuel economy on the highways.
 
81 body and chassis. 89 motor. yes its a tbi motor.. no shims and will take the spacer out
 
he got it apart ordered new perches cut the old ones off. so we are redoing it now
 
trying to finish this up i know that the Perch width should be 42.5" center to center. The perches themselves are 2.5" wide.
got the spacer out from the tranny cross member. need a idea what the pinon angle needs to be. not to sure. that all i need.. have a friend burn in the perches and order drive shafts.. thanks for the help
 
With a non CV, you want the pinion 1-2* lower than the transfer case. With a CV, match the angles.
 
This may be too late, but if you were going to get a new driveshaft in the rear anyways, why did you mess with the perches? With that much lift, you could have just ordered a new cv rear shaft and been done. With a cv shaft in the rear, you want the pinion of the axle to be pointed at the output of the tcase. If you go with just a normal 2 joint shaft, than you want the pinion to be more parallel with the output/ground. Here is good tech about this http://www.4xshaft.com/ . Click on "Tech Info" at the top, then click on "What type of driveshaft" link and it will explain it well. But I guess you guys have already cut off the perches, so like I said, this may be too late
 
yeah bit to late for that.. going to cut down a drive shaft i have laying around. trying to save a few bucks
 
You must log in or register to reply here.

Latest Posts

Top Bottom