MARKED MAN
Active LVC Member
anyone know the average cost of having the rearend gears changed on a mark 7. just got a set of 3.55 gears and dont know how to install them mysel
Rearend Gears Being Changed
- Thread starter MARKED MAN
- Start date
p38wannabe
Active LVC Member
good question, since I want to change mine as well - hopefully somone can give some input.
NYC LS8
Dedicated LVC Member
Figure about 250-300. Depends on the place, though.
Here's a good tech article on it: http://www.corral.net/tech/drivetrain/gears.html
Here's a good tech article on it: http://www.corral.net/tech/drivetrain/gears.html
Sergmark
Dedicated LVC Member
Pm ...Mark of Death he has done it a few times :wrench :wrench
markvii91
LVC Member
NYC thanks for the excellant tech article I just ordered a set of 3:73 from Summit. I raced for the first time yesterday and wasn't happy with my ET's.
I'm going to do the swap at my employer's shop with the help of a heavy duty truck tech. That article will be most helpful. Good luck with yours MARKED MAN! I'll let you know how I make out. :L :Beer
I'm going to do the swap at my employer's shop with the help of a heavy duty truck tech. That article will be most helpful. Good luck with yours MARKED MAN! I'll let you know how I make out. :L :Beer
NYC LS8
Dedicated LVC Member
No problem, man. Good luck on the install!
Scott Adams
LVC Member
Oh, does gears
Roush, who did my GT-40 & T-5 work, originally put the 3.73 gears in. The driveline vibration was pretty severe so we went back to 3.55. There's still a vibrattion in the 78-83 MPH slot but its less severe. A new, large OD prop shaft didn't seem to make much difference, but a grank shaft damper change helped a bit. Yesterday I'm looking under the car when it was on the rack getting a couple of new tires, and I notice a big hunk of metal hanging by one stud, right underneath the diff. Turns out its called a "differential damper". It's supposed to straddle the third member and damp out driveline vibrations. I must have hit a boulder or something and ripped half of it out. My friendly Lincoln dealer says a dealer-only supplier, "Vintage Parts" has them and it'll cost me around $120. Is it worth it? Ford says it's obsolete. I don't see it on the above photos. Hmmmm.
markvii91 said:
Roush, who did my GT-40 & T-5 work, originally put the 3.73 gears in. The driveline vibration was pretty severe so we went back to 3.55. There's still a vibrattion in the 78-83 MPH slot but its less severe. A new, large OD prop shaft didn't seem to make much difference, but a grank shaft damper change helped a bit. Yesterday I'm looking under the car when it was on the rack getting a couple of new tires, and I notice a big hunk of metal hanging by one stud, right underneath the diff. Turns out its called a "differential damper". It's supposed to straddle the third member and damp out driveline vibrations. I must have hit a boulder or something and ripped half of it out. My friendly Lincoln dealer says a dealer-only supplier, "Vintage Parts" has them and it'll cost me around $120. Is it worth it? Ford says it's obsolete. I don't see it on the above photos. Hmmmm.