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: Chevy Dana 20 interchangability ManglerYJ 08-10-2004, 07:14 AM I have a factory SM465 to Chevy Dana20 in my Wrangler. I'd like to swap the 20 out for something with a little better low range. Is there anything else that will bolt up? Its a REALLY strange bolt pattern. I've never seen anything like it before. Grandpa Jeep 08-10-2004, 07:15 AM You sure it's a D20? I didn't think D20s ever came behind four speeds. Got pics? ManglerYJ 08-10-2004, 07:20 AM Positive.... and I verified it on ColoradoK5.com It's all factory with a LONG ASS adapter between them u2slow 08-10-2004, 09:03 AM Get a complete SM465 with an attached 208 or 241 from an 81-91 fullsize. Does the Tera 3.15 gearset not work on all the Dana 20's? Grandpa Jeep 08-10-2004, 09:33 AM Positive.... and I verified it on ColoradoK5.com It's all factory with a LONG ASS adapter between them Got any pics? I've never seen a chevy D20 before. odee 08-10-2004, 12:08 PM The one's that I have seen came out of late 60's half ton trucks-blazers. Would it be possible to swap in some of the gears from a bronco 20 or some of the low gear sets for a jeep? Black Dog 08-10-2004, 04:24 PM They came in Blazers/Jimmys only - '69 - '74 or so. You can swap in a 205 if you get one with the 465 adapter. There is nothing else that will work with that adapter. GM made all of the adapters such that the rear driveshaft was the same length no matter what tranny/t-case you got. thundr undrgrond 08-11-2004, 02:33 PM they did????? not in older stuff, that only happend when they went to the 208, as far as i know Davethorik 08-11-2004, 02:45 PM They came in Blazers/Jimmys only - '69 - '74 or so. You can swap in a 205 if you get one with the 465 adapter. There is nothing else that will work with that adapter. GM made all of the adapters such that the rear driveshaft was the same length no matter what tranny/t-case you got. Maybe that is true, but when I swapped a NP205 into my truck (replaced stock Rockwell T221) The rear d-shaft had to be shortened about 2". If it matters, '69 was a transition year for the Rockwell and the NP case. Also, I have seen some earlier K20's with one-piece driveshafts (stock). Mine has a 2 piece rear. Black Dog 08-11-2004, 04:34 PM That may only apply to the '69 and newer stuff with various trannys (auto, 3 and 4 speed) connected to NP205s and Dana 20s> Budru 08-11-2004, 06:35 PM GM made all of the adapters such that the rear driveshaft was the same length no matter what tranny/t-case you got. That was the case when I decided to swap an sm465 in place of my th350 in my 79 Blazer. They made the sm465 adapter a few inches longer to compensate for the shorter length of the manual. I was real happy when I realized I wouldnt have to get my alredy new custom driveshaft lengthened. | |