1983 Scrambler "STUMP JUMPER". Frame off, 5.3 Conversion.

City
Willis
State
Tx
I would do some more research into flat towing a Dana 300 with the rear drive shaft hooked up, I don't want to see you damage your Scrambler :twocents:

http://www.jeepsunlimited.com/forums/showthread.php?159598-Flat-towing-with-a-Dana-300

http://www.pirate4x4.com/forum/jeep...res-why-you-shouldnt-flat-tow-dana-300-a.html

http://www.jeep-cj.com/forums/f2/dana-300-flat-tow-20930/

http://www.jeepforum.com/forum/f8/flat-towing-cj7-dana-300-lots-questions-873708/


One of the reasons why the Warn Full Float rear axle conversions were popular, unlock the rear hubs and flat tow worry free. I would disconnect the rear drive shaft, better safe then sorry :twocents: :thumbsup: :wave:

NEVER MIND, FORGOT YOU DON'T HAVE A DANA 300:crazy:
Man this news to me and bad news at that. I’m in the middle of doing a similar build to Stump Jumper with one main purpose being a flat tow vehicle for the coach. I have been flat towing Dana 300’s for years, sometimes several 100 miles at a time and never had a problem. Guess I was lucky.
 
City
Willis
State
Tx
The 4:10 gears are excellent but I think Stump Jumper could have easily taken 4:56 gears and still be great as a daily driver. I still need to change the gear ratio settings in my Computer but no doubt the fuel mileage and performance is much better.
This is surprising. I have 3.73’s that I like with my 258/T5 running 12.50x33’s. I was expecting the same gears to be about perfect with my 5.3/4L60 swap. If, like you I decide that I need lower gears I will go ahead and build my 9”rear instead of re-gearing the 20 again.
 

LetchcoreCJ7

Legacy Registered User
City
Nashville
State
TN
This is surprising. I have 3.73’s that I like with my 258/T5 running 12.50x33’s. I was expecting the same gears to be about perfect with my 5.3/4L60 swap. If, like you I decide that I need lower gears I will go ahead and build my 9”rear instead of re-gearing the 20 again.
5.3 can handle a lot more RPM before falling on its face than the 258.
 
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