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Mitzki5 · 05-30-2002, 02:58 AM

Would a rearend from a 70 3/4 ton custom camper swap directly out with my rearend on my 69 GMC 1/2 ton? Both are leaf rears. Thanks a lot!

Big69C20 Toy · 05-30-2002, 06:18 AM

I'm thinking if the axle tubes are the same size, yeah shouldnt be a problem. You might have to find specialty sized U joints though, because the bigger rear might want a larger cap than the 1/2 tons driveshaft. Shouldnt be hard to find those though, i heard of several companies/people that used em. Try to do some good measuring though, make sure things wont catch or rub or anything, hate to have that happen

Mike C · 05-30-2002, 12:15 PM

Maybe. Some trucks have 40" spring centers (Longhorns, 4x4's, Blazers) and most pickups have 42.5", so you should check. Your driveshaft may be too long as well, and you know the 8 lug/6 lug thing is different, right?

*Fast68Chevy* · 05-30-2002, 01:02 PM

can do it if neither truck is a C30(1 ton) or all longhorn or a K5(blazer jimmy)

42.5" centers on all except 1 ton and blazer jimmy, and 40" centers n blazer jimmy and all 1 ton and all longhorn

U joint caps are 1 3/16" diameter on 3/4 ton and 1 ton and smaller on 1/2 ton, youll need universal u joint at the axle pinion yoke, you can also use a 73-up rear end if you relocate one of the shock mounts, axle tube U clamps wil be different

05-30-2002, 02:58 AM	#1
Mitzki5 "TRUCKLESS" Join Date: Jan 2002 Location: Tuscola IL Posts: 457	Would a ... Would a rearend from a 70 3/4 ton custom camper swap directly out with my rearend on my 69 GMC 1/2 ton? Both are leaf rears. Thanks a lot! __________________ Mitzki5 No longer have an old truck! But always looking for another one!

05-30-2002, 06:18 AM	#2
Big69C20 Toy Livin' it up. Join Date: Nov 2001 Location: Richland, MI Posts: 2,212	I'm thinking if the axle tubes are the same size, yeah shouldnt be a problem. You might have to find specialty sized U joints though, because the bigger rear might want a larger cap than the 1/2 tons driveshaft. Shouldnt be hard to find those though, i heard of several companies/people that used em. Try to do some good measuring though, make sure things wont catch or rub or anything, hate to have that happen __________________ -Greg; Sold the 69 C20. It's off to a better home with more love! Now onto the 86 CUCV M1009; K5 blazer with 6.2L diesel, corp 10 bolt axles, Detroit locker in the rear, trutrac front, 3.73 gears, 35" tires.

05-30-2002, 12:15 PM	#3
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,715	Maybe. Some trucks have 40" spring centers (Longhorns, 4x4's, Blazers) and most pickups have 42.5", so you should check. Your driveshaft may be too long as well, and you know the 8 lug/6 lug thing is different, right? __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

05-30-2002, 01:02 PM	#4
Fast68Chevy Account Suspended Join Date: May 2000 Location: IL Posts: 0	can do it if neither truck is a C30(1 ton) or all longhorn or a K5(blazer jimmy) 42.5" centers on all except 1 ton and blazer jimmy, and 40" centers n blazer jimmy and all 1 ton and all longhorn U joint caps are 1 3/16" diameter on 3/4 ton and 1 ton and smaller on 1/2 ton, youll need universal u joint at the axle pinion yoke, you can also use a 73-up rear end if you relocate one of the shock mounts, axle tube U clamps wil be different



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