c10 rear in a c20???

[66coffin]

i want a five lug rear, is it possible to just instal a stock c10 rear end in my '66 c20? still use all the same trailing arms, brake lines, etc?

[jason65]

My 65C20 has a 65C10 rear end with a 5 lug cpp conversion.

[66coffin]

what's involved with the conversion? what's different on the 2 rear ends?

[jason65]

The conversoin takes you from 6 lug to 5. You just have to swap out axles and put the new drums on that come with the kit. The 8 lug rear end is more heavy duty. I also moved my panhard mount "frame side" back about an inch to get it to line up again.http://www.classicperform.com/Store/.../6369RAC-5.htm You could use drums from your local parts house. Or.http://www.classicperform.com/Store/...k/6569RACK.htm

[66coffin]

thanks jason65 for the insight, but do i just pull the 8 lug axles out and put in the 5 lug ones, is it that simple?

[Strider]

Hey team,

I'm going to take this a little further.

I have a 71 5 lug rear axle that I want to put into my 68c10 ( swapping front drums to discs with a set of cpp spindles).
So I want the front and rear to have the same bolt pattern (obviously!!!!!)

The 71 rear axle is a 12 bolt and the 68 axle is too.

The 71 has 3.73 gears and is a factory posi unit.

I was going to put 3.08 gears in it but it won't accept them according to what I have been told and even summit racing shows in their catalogue that there are 3 different carriers for the chevy 12 bolt truck axle.

I was hoping to go to more friendly highway gears but I can't do this with my 71 axle and my 68 axle has like 4.11 gears.

Any suggestions??????

I didn't want to have to find another axle or buy a carrier to fit. Perhaps I'm going to have to go with a 5 speed with overdrive and dump my powerglide!!!

Riley

[62 mark]

The 3/4 ton axle won't accept the 1/2 ton axle shafts...but the whole 1/2 ton axle will bolt right in, as long as it came from a coil spring truck. what are you running on the front?

[jason65]

If you swap rear ends keep your C20 pan hard bar. It is longer than a C10. If you change to a C10 pan hard then you will need to change the frame mount. Just put the C10 rear end in and convert it. If your gonna do c-notches get ready to cut threw 1/2" of steel. C20s have an extra plate over the rear end. What are you gonna do to the front?

[jason65]

Originally Posted by Strider

Hey team,

I'm going to take this a little further.

I have a 71 5 lug rear axle that I want to put into my 68c10 ( swapping front drums to discs with a set of cpp spindles).
So I want the front and rear to have the same bolt pattern (obviously!!!!!)

The 71 rear axle is a 12 bolt and the 68 axle is too.

The 71 has 3.73 gears and is a factory posi unit.

I was going to put 3.08 gears in it but it won't accept them according to what I have been told and even summit racing shows in their catalogue that there are 3 different carriers for the chevy 12 bolt truck axle.

I was hoping to go to more friendly highway gears but I can't do this with my 71 axle and my 68 axle has like 4.11 gears.

Any suggestions??????

I didn't want to have to find another axle or buy a carrier to fit. Perhaps I'm going to have to go with a 5 speed with overdrive and dump my powerglide!!!

Riley

Only suggestion I have is get a 60-66 chevy truck.

[Strider]

Originally Posted by jason65

Only suggestion I have is get a 60-66 chevy truck.

How will that help me?

60-66 trucks didn't have 5 lug rears!!!!!!!!!!!!!!!!!!!

Any other useful suggestions!!!!!!!!!???????????????

I really would like a 63 Chevy truck actually!

[63chevyll]

you may have to change to a special u-joint but i dont know for sure

[66coffin]

as far as the front goes i'm still on the fence, i need 5 lug but don't have the cash for a kit... any suggestions? i did convert the drums up front from drum to '84 disc but they are 8 lugs and i hate them!! can i put a 5 lug rotor on the '84 3/4 ton spindles? prob. not right? help.

[Captainfab]

All you need to get 5 lug in the front is to get the lower control arm, spindles, rotors, calipers, etc from a '73-'87 C10 pickup, Suburban, or 2wd Blazer. You don't have to buy expensive aftermarket parts to do it. The parts you need should be able to be found in a local wrecking yard, or in newspaper classifieds, Craigslist, etc.

For the rear you just need either a complete rear end from a '64-'70 C10 and get the conversion axles, or a '71-'72 which already has the 5 lug axles.

Originally Posted by 66coffin

as far as the front goes i'm still on the fence, i need 5 lug but don't have the cash for a kit... any suggestions? i did convert the drums up front from drum to '84 disc but they are 8 lugs and i hate them!! can i put a 5 lug rotor on the '84 3/4 ton spindles? prob. not right? help.

[Captainfab]

To get 3.08 gears in that '71 12 bolt, you're going to have to change the carrier to a 3 series carrier....no way around it. You could most likely sell the 3.73's and factory posi to offset the cost. You may be able to find a 3 series carrier used as they are the same from '65 to '82 in the 12 bolt truck rear ends. Or as you said go to an OD trans.

Originally Posted by Strider

Hey team,

I'm going to take this a little further.

I have a 71 5 lug rear axle that I want to put into my 68c10 ( swapping front drums to discs with a set of cpp spindles).
So I want the front and rear to have the same bolt pattern (obviously!!!!!)

The 71 rear axle is a 12 bolt and the 68 axle is too.

The 71 has 3.73 gears and is a factory posi unit.

I was going to put 3.08 gears in it but it won't accept them according to what I have been told and even summit racing shows in their catalogue that there are 3 different carriers for the chevy 12 bolt truck axle.

I was hoping to go to more friendly highway gears but I can't do this with my 71 axle and my 68 axle has like 4.11 gears.

Any suggestions??????

I didn't want to have to find another axle or buy a carrier to fit. Perhaps I'm going to have to go with a 5 speed with overdrive and dump my powerglide!!!

Riley

[66coffin]

Thanks captain!! You're helpful as always!!

[Strider]

Thanks for all the input and assistance!
You guys fruitin' rock!

Good luck with all your builds!

Anyone out there have a yj tub to sell me and are you possibly located in ontario, canada or minnesota or close by?????

Cheers!