Rapid Robert
Well-Known Member
does anyone have a brand/part # for some ones longer than stock. I did go to Mancini but no info on their lengths. thank you for your time. RR
longer ubolts for 8&3/4
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7-ish is stock, so you should be able to figure from there.
mancini has 8's and 9's
fyi, the u-bolt that are supplied with the lower block kit don't have enough thread engagement to use w/o the block. so something to look out for when buying off amazon or ebay if you're picking up generics.
mancini has 8's and 9's
fyi, the u-bolt that are supplied with the lower block kit don't have enough thread engagement to use w/o the block. so something to look out for when buying off amazon or ebay if you're picking up generics.
9/16" is gonna be TIGHT and likely won't work w/o a little massaging on the plate holes.
i wouldn't even try it with OG plates, maybe aftermarkets are a little wider-er in that department.
Rapid Robert
Well-Known Member
any suggestions on a choice. what are OG plates?
original shock plates.
i don't know what you're trying to do or why you need longer bolts so i can't make any suggestions.
Rapid Robert
Well-Known Member
I am going to use tapered shims to get the pinion angle correct and Randys trailer tie down lower plate which adds 1/4"
you're *probably* fine with stock 7 1/4 units or the 7 5/8" ones offered by mancini
hold on... i'll go measure some up to be sure for ya...
ETA: the ones i have here are 7 5/8" with 4" of thread, they will easily accommodate a shim and 1/4" plate. however i don't know what spring pack you're running. if it's 2" or less, then you're fine.
hold on... i'll go measure some up to be sure for ya...
ETA: the ones i have here are 7 5/8" with 4" of thread, they will easily accommodate a shim and 1/4" plate. however i don't know what spring pack you're running. if it's 2" or less, then you're fine.
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Rapid Robert
Well-Known Member
good info & very much appreciated. tomorrow I will go measure & see what length I need, thanks bro, I owe ya one!
Mancini has the length right in their ads...
This one is 6 5/8"
MRE - Restoration Axle U-Bolt Pkg
7 1/8
MRE - Restoration Axle U-Bolt Pkg
This one is 6 5/8"
MRE - Restoration Axle U-Bolt Pkg
7 1/8
MRE - Restoration Axle U-Bolt Pkg
Rapid Robert
Well-Known Member
OK I musta missed that. I will recheck & measure my spring & tapered shims thicknesses to see what length I need. thanks Dana
I wouldn't think that if you have the original bolts that adding the tie down and a shim would cause problems. I've never run into problems with not having enough length on the bolts. Maybe post a picture or two of the problems you are running into.
racerjoe
Well-Known Member
Any auto parts store should have them.
My local machine shop can makes whatever I want. Been a while though. Used to be like 12 bucks. Just a thought.
Regardless of the U bolts you get BE SURE they have the flattened area in the U Or you WILL bend your housing (8 3/4) and get the torque specks from the FSM in 67 it is 45 ft lbs
Rapid Robert
Well-Known Member
the springs/tapered shims are 2" tall. not sure how much the shock plate adds and randys trailer tie down plate is 1/4". Is there a source for longer bolts with the flattened radius? yes I saw some longer ones that were not radiused & the torque spec was way higher than 45, dont remember the #. EDIT just saw the Mancini ones in the prior post. I think thats what I need! thanks guys, much appreciated. another problem solved...
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2" plus 3" for the tube, plus 1/2" (just a guess for the shock plate and others) that's 5.5" plus an inch for the nuts 6.5 minimum
Scody21
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There’s a website like u-bolts.com
. You can order any size you want to your specs and have them within a few days.
. You can order any size you want to your specs and have them within a few days.
Rapid Robert
Well-Known Member
who sells these? my current ones are 7" & I need slightly longer ones
I think Mancini racing has 2 lengths of their "restoration" u joints
Iirc I thought I needed 7" inch ones but in the end did not. I have 6 full leafs.
What are you trying to put on there
Rapid Robert
Well-Known Member
a 4 degree tapered shim/shock plate/randys tie down plate (it adds 1/4"). I have 7 inchers now & they are a bit too short.
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