Pay Dues or become a Site Supporter |
|
Transmissions and Rear Ends Three on the tree or four in the floor? Shift it all here. |
|
Thread Tools |
#1
|
|||
|
|||
Rear end parts most dont think of
Being a Jeep nut and old truck crazy has given me some unique perspectives on how to improve/modify our old stuff without going broke in the process. Dont get me wrong on preserving nice original rigs. I will search the world over for the proper parts for my 58 impalla or the cad. I even will on some of the trucks. However Most of the trucks do get used for work year-round. Its to much fun to get 2 units of ply in a 37 chevy 1-1/2 ton or 40 sheets of firerock in a 65 gmc. People say I am crazy but its no fun to just look at them. So here are a few things that I have found that work in our old GMC trucks that wont break the bank, and make our driver trucks more roadworthy. First 90's Ford and Dodge one ton vans with the D60 are a great place to find 3.54 third members. Carrier and all are 45.00 here in the pick and pull yards. So for about a Ben Franklin you can get on the road with some highway friendly gears in your 1500 truck. If you have 4.56 gears look under a 70's GM 1/2 ton for a stewart warner ratio adjuster with the 1.22-1 # on it, 4.09 need the 1.1 or 1.3 both work well. those are 2 bucks here. Second is easier with a K1000 than a 2 wheel drive but if you do a disk brake conversion on the front this would work also. So you have a K truck with axle troubles and bad brakes we all know about the 70's front axle conversion. Disk brakes open knuckle....For the rear use an Izusu rodeo/Honda passport D44. It has disk brakes. Usually a trac lock 3 series carrier with a thick 4.09 ring gear and six bolt axles. These are 95.00 in the pick and pull yards. These are 1/2 inch narrower than the stock D44 in our GMC's . I have never spent more than 500.00 on this swap on a k1000. And 100.00 was on an adjustable brake proportioning valve. Keep on thinkin.... Barry Charon
Last edited by BarryGMC; January 27th, 2013 at 12:16 AM. Reason: wording wrong |
#2
|
||||
|
||||
Re: Rear end parts most dont think of
Quote:
I'd be looking for a Stewart Warner Ratio Adjuster. If it has a 1.22-1 on it then I'm good to swap and it won't blow up my 4wd front gears? |
#3
|
|||
|
|||
Re: Rear end parts most dont think of
The ratio adjuster is for the speedo. You still need to match the gears. Sorry about the writing math was my thing. BC
|
#4
|
|||
|
|||
Re: Rear end parts most dont think of
IS your truck a 1/2 or 3/4 ton
|
#5
|
||||
|
||||
Re: Rear end parts most dont think of
It's a half ton with the 305 in her. I'll copy over my build thread later.
Don't worry about the math thing. If not for guys like you we'd never figure this stuff out. I wish math was my thing. |
#6
|
|||
|
|||
Re: Rear end parts most dont think of
71-77 are the best for a straight axle conversion disk front d44 and 12 bolt rear. However I dont like the 10/12 bolt gm axles. I prefer the Dana stuff and with the disk brake rear I love the Isuzu/ Honda D44
|
#7
|
|||
|
|||
Re: Rear end parts most dont think of
I'll take a Dana 44 any day,GM 10&12bolts are pure junk. Pete Chronis
Northern Cal. |
#8
|
|||
|
|||
Re: Rear end parts most dont think of
Better axle bearings, carrier selection, and no c clips. also the 12 bolt cant handle the torque of a 4x4 in low range. Crush sleeve loosens up under high torque and rear dies.....
|
#9
|
||||
|
||||
Re: Rear end parts most dont think of
What about C-2500's? I got Dana 60 w/4.10 (ugh!). I belive 3.54 is as low(high) as I can go. Is anybody aware of something other than all new parts that will work in the 3/4 ton trucks? ie any crossovers I can look for in the pick a part yards?
|
#10
|
|||
|
|||
Re: Rear end parts most dont think of
Quote:
Another fairly easy swap is the GM 14 bolt axle, which I believe is available down to 3.23. Lastly, in the 1960s, Mopar used a D60 in some of their high performance cars (like Hemis). I don't know if that one was available with taller gears than 3.54, but in any case it would probably be a collectors' item and priced accordingly. Ray Last edited by raycow; January 28th, 2013 at 06:10 AM. |
Bookmarks |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
if it aint broke dont fix it! | Archiver | Previous Forum Posts | 0 | November 30th, 2006 06:06 AM |
Re: [6066 GMC] if it aint broke dont fix it! | Archiver | Previous Forum Posts | 0 | November 30th, 2006 12:10 AM |
2 heads I dont need..... | Archiver | Previous Forum Posts | 0 | May 13th, 2006 03:10 AM |
Re: [6066 GMC] 2 heads I dont need..... | Archiver | Previous Forum Posts | 0 | May 13th, 2006 01:46 AM |
Re: [6066 GMC] 2 heads I dont need..... | Archiver | Previous Forum Posts | 0 | May 13th, 2006 01:44 AM |