How much yoke is needed into the transmission 3550 Tremec?
So I'm getting my 302 swap done on my 87 TC and ive got nearly everything dialed in. One issue i ran into is the amount of yoke shaft i see coming out of the tranny. So to give you guys an idea its a 302 out of my old 89 foxbody, tremec 3550 (stock style T5 input and ouput shafts), bell housing that came along with the tranny, chuck motor mounts, and a rear end out of the same foxbody as well (Had already done the SN95 Cobra brake conversion).
Motor lines up great, tranny mounts in the correct spot, shifter is right where it needs to be, I'm almost ready to rock n roll. Rear end was already running great before I started the v8 swap.
I installed the stock T5 turbo coupe driveshaft into the car and that was that until later on while under the car i noticed quite a bit of the driveshaft yoke is exposed, more than i remember seeing on my foxbody or my t-bird in stock trim.
Only thing i had to measure at the time was a metric ruler and I totally forgot to take a picture, also the the stock TC driveshaft had some type of damper on the yoke which has since came off and was removed but the inner collar is still there, anyways the measurement from the end of the tranny housing to the beginning of the damper mount portion on the yoke is about 40mm or about 1-9/16", the yoke shaft extends into the damper mount portion on the front yoke so the total length of yoke shaft exposed is about 65mm or about 2-9/16", that is the length from the end of the tranny housing to the end of the yoke shaft exposed.
Take note that the car is sitting on jack stands but the rear jacks are mounted on the rear axle and the car is level, wheels are in normal ride position.
I don't know how much of the driveshaft yoke is actually inside the transmission as i forgot to check but i will pull it soon to check, The car isn't in driving condition yet but I wont test it until I get this issue resolved.
From what I'm looking at I'll have to get the driveshaft lengthened, get a different yoke, or maybe use a driveshaft spacer??
Is anybody running this same setup or have some tips to get this taken care of. I know it's an oddball setup with the 3550 and not many people run the 3550 nowadays especially in a t-bird so any input would be helpful.
I'll get a picture asap and remove the driveshaft to see how much of the yoke is actually in the trans as soon an I get the chance.
I did a bit of research and seen that some front driveshaft yokes are longer than others so i might actually be in the clear if the yoke shaft is long enough but it totally slipped my my mind on double checking, I'm still tackling a couple other things on the car as far as the swap goes but i did get it to fire and idle since the swap was done so I'm closing in on the end of my swap, just a couple more things to get squared sway.
Topic: How much yoke is needed into the transmission 3550 Tremec? (Read 1833 times)
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