View Full Version : getting another Studebaker truck - a Champ

03-13-2018, 12:04 PM
I am buying a 1964 Champ to accompany the '55 truck I have already. The Champ is a stock, half ton, short wide bed with the inline six and three speed, non overdrive transmission. The truck is solid with some restoration already completed.
I don't know what the rear end ratio is but I would like to be able to do some interstate driving (70 mph) with it. Would a complete rear end out of a 80s Chevrolet half ton be a good swap? I know the wheel bolt pattern is the same. Not sure about the width. Any modifications done by me will be with no cutting or welding on the truck. I will not do anything that cannot be "undone" later. Thanks.

03-13-2018, 12:27 PM
Might be better to put OD in it . My Champ has a 4:27 in it with OD and I can run all day at 75 .....good luck with it .

03-13-2018, 01:42 PM
Thom, I agree with 2r5 about an OD. Another option is changing the ring and pinion. A 64 1/2 ton should have a Dana 44. There is a vast choice of ratios available. There are two differential cases. One for 3.92 ratio and numerically higher and one for 3.73 and down. The ring gear flange is positioned differently between the two. Any copetent driveline shop should be able to set it up for you. The Chevy rear end will work but it might be a little wider. You will surely have to move the spring pads on the housing. You may have to make new lower spring clamp plates as the Chevy axle tube diameter is probably larger so the u-bolts will have a wider span.

03-13-2018, 03:15 PM
The wifes 64 Champ is a Six with o.d. and 4:27 Rear , The o.d. is a wonderful thing , The truck cruises great and get 26+ mpg

Commander Eddie
03-13-2018, 03:30 PM
Might be better to put OD in it . My Champ has a 4:27 in it with OD and I can run all day at 75 .....good luck with it .
Agreed. My '61 champ has the same rear end gears with OD and I drove from Portland, Oregon to Santa Maria, California and back with no problem. Drove 70 almost the whole way.

03-13-2018, 09:36 PM
Dad's '53 Commander coupe came from the factory with a 4.56 rear connected to a 3sp/OD - he never complained about it being too slow...

03-14-2018, 08:16 PM
I hope I haven't jinxed myself by posting too soon. There is now a small problem and I might not be getting the Champ after all. I thought I had it bought. We'll see. DANG IT!

03-15-2018, 09:14 AM
Keep your eyes out for your swapping parts tho...there are plenty of Champ 6's out there FS.