JESMAT5243
Member
I have a 87 D150 shortbed. Slant six with A904. My question is can I use an A904out of a earlier year car? I think the donor was a 77 volare with /6 a904 combo.
splines all teh way to the end of input shaft? Easier way to tell, no spline counting needed.Tranny is non lockup with 27 spline. Will get appropriate converter and install. Thanks for the help
It's a non lockupHere it is
Great info Volaredon, now can't a person install a non-lockup converter in the place of a lockup, like on a 78 year model up, and it work, just won't have the extra final drive ratio that the lockup provided? They will fit in otherwords, somehow, I had one done years ago. There was mention of spline count difference but.....I dropped off a lockup 904 and got back a non lockup 904 with the agreement of the builder using a non lockup converter due to price. Teenager at the time, short of money, I ended up putting a higher ratio rear diff in the Aspen from a cop car from the bone yard, it work great, I had my highway ratio back.78 was 1st year for lockup, some had it, but not all. When you have the TC off its easy to tell if the trans is lockup or not. if the splines go all the way to end of input shaft it is NOT lockup. If the shaft is smooth and turned down a little smaller at the end and the splines start about 1/2" back from the end it IS a lockup version.