4+3 reverse problem
05-13-2014, 03:40 PM
#1
1st Gear
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4+3 reverse problem
1985 4+3 shifts fine, clutch engages well. When in reverse, and backing uphill, or with resistance, slippage prevents movement. On level ground, no problems. Owned car 19 years, has 30k miles. I have never done maintenance on o/d unit. I had no idea how it worked until I started having problems. Took it to a trans shop, and they said the trans needed to be rebuilt. Could o/d unit or electrical problem cause this? Lately it started to intermittently engage/disengage o/d when engine was cold (normally engages @ 142 degrees). I can't understand a complete rebuild ($2-3K) when trans functions great except for uphill, backwards. Car is not abused.
05-13-2014, 05:17 PM
#2
Heel & Toe
Member Since: Jan 2008
Location: Sayre PA
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1985 4+3 shifts fine, clutch engages well. When in reverse, and backing uphill, or with resistance, slippage prevents movement. On level ground, no problems. Owned car 19 years, has 30k miles. I have never done maintenance on o/d unit. I had no idea how it worked until I started having problems. Took it to a trans shop, and they said the trans needed to be rebuilt. Could o/d unit or electrical problem cause this? Lately it started to intermittently engage/disengage o/d when engine was cold (normally engages @ 142 degrees). I can't understand a complete rebuild ($2-3K) when trans functions great except for uphill, backwards. Car is not abused.
Choices are rebuilt with a Speed rebuild and you send them your core, Swap in a ZF and deal with the details,
Get a Kiesler 5 speed conversion. Kiesler went under but another company still sells the common 5 speed for this.
Mine is still apart and not moving. $$$ becomes the issue.
Good luck!
